If you have an experience or insight to share or have learned something from a conference or seminar, your peers and colleagues on Energy Central want to hear about it. It's also easy to share a link to an article you've liked or an industry resource that ...

Highlights of the Energy Efficiency and Conservation Bill 2023

Caterpillar shares fell sharply in early trading Tuesday despite an earnings beat, as the construction equipment maker issued a cautious fourth-quarter outlook and said its order backlog fell, feeding into concerns about an economic slowdown.

Caterpillar Shares Fall on Economic Concerns, Despite Earnings Beat

Caterpillar shares have risen 1% since the beginning of the year, while the S&P's 500 index has increased 8.5%. The stock has risen 10% in the last 12 months. This story was generated by Automated Insights ( http://automatedinsights.com/ap) using data from Zacks Investment Research. Access a Zacks stock report on CAT at https://www.zacks.com/ap/CAT

Caterpillar: Q3 Earnings Snapshot

Caterpillar shares will provide a solid boost for the Dow after the construction equipment giant posted much stronger-than-expected third quarter earnings.

Caterpillar shares jump as construction spending powers Q3 earnings beat

Caterpillar's philanthropic organization, the Caterpillar Foundation, has contributed nearly $900 million to help make sustainable progress.

Caterpillar Foundation donates $1M to support humanitarian efforts

“We need to move away from natural gas,” Hitchcock said. “It’s still a fossil fuel, and a limited resource ... out broad intentions to promote renewable energy projects — things like workforce development and recruitment, new financing options ...

State’s draft energy plan highlights familiar Alaska megaprojects, offers vague plans for renewables

A report published Monday ahead of the COP28 climate summit in Dubai is calling for the tripling of the world's renewable energy capacity to 11,000

Report Calls for Tripling of Global Renewable Energy Capacity by 2030 -- OPIS

The International Renewable Energy Agency and the Cop28 presidency have called for the tripling of renewable power capacity and the doubling of energy efficiency by 2030 to reach the goals of the Paris Agreement.

Irena and Cop28 presidency call for tripling of renewable power capacity by 2030

The Alaska Energy Authority (AEA) has secured $206.5 million for Grid Resilience and Innovation Partnership (GRIP) Topic Area 3: Grid Innovation through the United States Department of Energy Grid'. .

AEA Secures $206.5 Million from U.S. DOE to modernize Alaska's energy infrastructure

The draft lays out some broad intentions to bring more renewable energy to the state. It also calls for the controversial Alaska LNG pipeline. The draft lays out some broad intentions to bring more renewable energy to the state.

Caterpillar

caterpillar

Alice in Wonderland by Lewis Carroll, is part of the HackerNoon Books Series. You can jump to any chapter in this book . Advice from a Caterpillar here CHAPTER V. Advice from a Caterpillar The Caterpillar and Alice looked at each other for some time in silence: at last the Caterpillar took the hookah out of its mouth, and addressed her in a languid, sleepy voice. “Who are ” said the Caterpillar. you? This was not an encouraging opening for a conversation. Alice replied, rather shyly, “I—I hardly know, sir, just at present—at least I know who I when I got up this morning, but I think I must have been changed several times since then.” was “What do you mean by that?” said the Caterpillar sternly. “Explain yourself!” “I can’t explain , I’m afraid, sir,” said Alice, “because I’m not myself, you see.” myself “I don’t see,” said the Caterpillar. “I’m afraid I can’t put it more clearly,” Alice replied very politely, “for I can’t understand it myself to begin with; and being so many different sizes in a day is very confusing.” “It isn’t,” said the Caterpillar. “Well, perhaps you haven’t found it so yet,” said Alice; “but when you have to turn into a chrysalis—you will some day, you know—and then after that into a butterfly, I should think you’ll feel it a little queer, won’t you?” “Not a bit,” said the Caterpillar. “Well, perhaps your feelings may be different,” said Alice; “all I know is, it would feel very queer to .” me “You!” said the Caterpillar contemptuously. “Who are ” you? Which brought them back again to the beginning of the conversation. Alice felt a little irritated at the Caterpillar’s making such short remarks, and she drew herself up and said, very gravely, “I think, you ought to tell me who are, first.” very you “Why?” said the Caterpillar. Here was another puzzling question; and as Alice could not think of any good reason, and as the Caterpillar seemed to be in a unpleasant state of mind, she turned away. very “Come back!” the Caterpillar called after her. “I’ve something important to say!” This sounded promising, certainly: Alice turned and came back again. “Keep your temper,” said the Caterpillar. “Is that all?” said Alice, swallowing down her anger as well as she could. “No,” said the Caterpillar. Alice thought she might as well wait, as she had nothing else to do, and perhaps after all it might tell her something worth hearing. For some minutes it puffed away without speaking, but at last it unfolded its arms, took the hookah out of its mouth again, and said, “So you think you’re changed, do you?” “I’m afraid I am, sir,” said Alice; “I can’t remember things as I used—and I don’t keep the same size for ten minutes together!” “Can’t remember things?” said the Caterpillar. what “Well, I’ve tried to say “How doth the little busy bee,” but it all came different!” Alice replied in a very melancholy voice. “Repeat, “ ,’” said the Caterpillar. You are old, Father William Alice folded her hands, and began:— “You are old, Father William,” the young man said, “And your hair has become very white; And yet you incessantly stand on your head— Do you think, at your age, it is right?” “In my youth,” Father William replied to his son, “I feared it might injure the brain; But, now that I’m perfectly sure I have none, Why, I do it again and again.” “You are old,” said the youth, “as I mentioned before, And have grown most uncommonly fat; Yet you turned a back-somersault in at the door— Pray, what is the reason of that?” “In my youth,” said the sage, as he shook his grey locks, “I kept all my limbs very supple By the use of this ointment—one shilling the box— Allow me to sell you a couple?” “You are old,” said the youth, “and your jaws are too weak For anything tougher than suet; Yet you finished the goose, with the bones and the beak— Pray, how did you manage to do it?” “In my youth,” said his father, “I took to the law, And argued each case with my wife; And the muscular strength, which it gave to my jaw, Has lasted the rest of my life.” “You are old,” said the youth, “one would hardly suppose That your eye was as steady as ever; Yet you balanced an eel on the end of your nose— What made you so awfully clever?” “I have answered three questions, and that is enough,” Said his father; “don’t give yourself airs! Do you think I can listen all day to such stuff? Be off, or I’ll kick you down stairs!” “That is not said right,” said the Caterpillar. “Not right, I’m afraid,” said Alice, timidly; “some of the words have got altered.” quite “It is wrong from beginning to end,” said the Caterpillar decidedly, and there was silence for some minutes. The Caterpillar was the first to speak. “What size do you want to be?” it asked. “Oh, I’m not particular as to size,” Alice hastily replied; “only one doesn’t like changing so often, you know.” “I know,” said the Caterpillar. don’t Alice said nothing: she had never been so much contradicted in her life before, and she felt that she was losing her temper. “Are you content now?” said the Caterpillar. “Well, I should like to be a larger, sir, if you wouldn’t mind,” said Alice: “three inches is such a wretched height to be.” little “It is a very good height indeed!” said the Caterpillar angrily, rearing itself upright as it spoke (it was exactly three inches high). “But I’m not used to it!” pleaded poor Alice in a piteous tone. And she thought of herself, “I wish the creatures wouldn’t be so easily offended!” “You’ll get used to it in time,” said the Caterpillar; and it put the hookah into its mouth and began smoking again. This time Alice waited patiently until it chose to speak again. In a minute or two the Caterpillar took the hookah out of its mouth and yawned once or twice, and shook itself. Then it got down off the mushroom, and crawled away in the grass, merely remarking as it went, “One side will make you grow taller, and the other side will make you grow shorter.” “One side of The other side of ” thought Alice to herself. what? what? “Of the mushroom,” said the Caterpillar, just as if she had asked it aloud; and in another moment it was out of sight. Alice remained looking thoughtfully at the mushroom for a minute, trying to make out which were the two sides of it; and as it was perfectly round, she found this a very difficult question. However, at last she stretched her arms round it as far as they would go, and broke off a bit of the edge with each hand. “And now which is which?” she said to herself, and nibbled a little of the right-hand bit to try the effect: the next moment she felt a violent blow underneath her chin: it had struck her foot! She was a good deal frightened by this very sudden change, but she felt that there was no time to be lost, as she was shrinking rapidly; so she set to work at once to eat some of the other bit. Her chin was pressed so closely against her foot, that there was hardly room to open her mouth; but she did it at last, and managed to swallow a morsel of the lefthand bit. *      *      *      *      *      *      * *      *      *      *      *      * *      *      *      *      *      *      * “Come, my head’s free at last!” said Alice in a tone of delight, which changed into alarm in another moment, when she found that her shoulders were nowhere to be found: all she could see, when she looked down, was an immense length of neck, which seemed to rise like a stalk out of a sea of green leaves that lay far below her. “What all that green stuff be?” said Alice. “And where my shoulders got to? And oh, my poor hands, how is it I can’t see you?” She was moving them about as she spoke, but no result seemed to follow, except a little shaking among the distant green leaves. can have As there seemed to be no chance of getting her hands up to her head, she tried to get her head down to them, and was delighted to find that her neck would bend about easily in any direction, like a serpent. She had just succeeded in curving it down into a graceful zigzag, and was going to dive in among the leaves, which she found to be nothing but the tops of the trees under which she had been wandering, when a sharp hiss made her draw back in a hurry: a large pigeon had flown into her face, and was beating her violently with its wings. “Serpent!” screamed the Pigeon. “I’m a serpent!” said Alice indignantly. “Let me alone!” not “Serpent, I say again!” repeated the Pigeon, but in a more subdued tone, and added with a kind of sob, “I’ve tried every way, and nothing seems to suit them!” “I haven’t the least idea what you’re talking about,” said Alice. “I’ve tried the roots of trees, and I’ve tried banks, and I’ve tried hedges,” the Pigeon went on, without attending to her; “but those serpents! There’s no pleasing them!” Alice was more and more puzzled, but she thought there was no use in saying anything more till the Pigeon had finished. “As if it wasn’t trouble enough hatching the eggs,” said the Pigeon; “but I must be on the look-out for serpents night and day! Why, I haven’t had a wink of sleep these three weeks!” “I’m very sorry you’ve been annoyed,” said Alice, who was beginning to see its meaning. “And just as I’d taken the highest tree in the wood,” continued the Pigeon, raising its voice to a shriek, “and just as I was thinking I should be free of them at last, they must needs come wriggling down from the sky! Ugh, Serpent!” “But I’m a serpent, I tell you!” said Alice. “I’m a—I’m a—” not “Well! are you?” said the Pigeon. “I can see you’re trying to invent something!” What “I—I’m a little girl,” said Alice, rather doubtfully, as she remembered the number of changes she had gone through that day. “A likely story indeed!” said the Pigeon in a tone of the deepest contempt. “I’ve seen a good many little girls in my time, but never with such a neck as that! No, no! You’re a serpent; and there’s no use denying it. I suppose you’ll be telling me next that you never tasted an egg!” one “I tasted eggs, certainly,” said Alice, who was a very truthful child; “but little girls eat eggs quite as much as serpents do, you know.” have “I don’t believe it,” said the Pigeon; “but if they do, why then they’re a kind of serpent, that’s all I can say.” This was such a new idea to Alice, that she was quite silent for a minute or two, which gave the Pigeon the opportunity of adding, “You’re looking for eggs, I know well enough; and what does it matter to me whether you’re a little girl or a serpent?” that “It matters a good deal to ,” said Alice hastily; “but I’m not looking for eggs, as it happens; and if I was, I shouldn’t want : I don’t like them raw.” me yours “Well, be off, then!” said the Pigeon in a sulky tone, as it settled down again into its nest. Alice crouched down among the trees as well as she could, for her neck kept getting entangled among the branches, and every now and then she had to stop and untwist it. After a while she remembered that she still held the pieces of mushroom in her hands, and she set to work very carefully, nibbling first at one and then at the other, and growing sometimes taller and sometimes shorter, until she had succeeded in bringing herself down to her usual height. It was so long since she had been anything near the right size, that it felt quite strange at first; but she got used to it in a few minutes, and began talking to herself, as usual. “Come, there’s half my plan done now! How puzzling all these changes are! I’m never sure what I’m going to be, from one minute to another! However, I’ve got back to my right size: the next thing is, to get into that beautiful garden—how that to be done, I wonder?” As she said this, she came suddenly upon an open place, with a little house in it about four feet high. “Whoever lives there,” thought Alice, “it’ll never do to come upon them size: why, I should frighten them out of their wits!” So she began nibbling at the righthand bit again, and did not venture to go near the house till she had brought herself down to nine inches high. is this About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Lewis Carroll (2008). Alice in Wonderland. Urbana, Illinois: Project Gutenberg. Retrieved https://www.gutenberg.org/cache/epub/11/pg11-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at , located at www.gutenberg.org https://www.gutenberg.org/policy/license.html.

Advice from a Caterpillar

The Story-book of Science by Jean-Henri Fabre, is part of the HackerNoon Books Series. You can jump to any chapter in this book here . PROCESSIONARY CATERPILLARS CHAPTER XXXIII. PROCESSIONARY CATERPILLARS “WE frequently see, at the ends of pine branches, voluminous bags of white silk intermixed with leaves. These bags are, generally, puffed out at the top and narrow at the bottom, pear-shaped. They are sometimes as large as a person’s head. They are nests where live together a kind of very velvety caterpillars with red hairs. A family of caterpillars, coming from the eggs laid by one butterfly, construct a silk lodging in common. All take part in the work, all spin and weave in the general interest. The interior of the nest is divided by thin silk partitions into a number of compartments. At the large end, sometimes elsewhere, is seen a wide funnel-shaped opening; it is the large door for entering and departing. Other doors, smaller, are distributed here and there. The caterpillars pass the winter in their nest, well sheltered from bad weather. In summer they take refuge there at night and during the great heat. “As soon as it is day, they set out to spread themselves on the pine and eat the leaves. After eating their fill they reënter their silk dwelling, sheltered from the heat of the sun. Now, when they are out on a campaign, be it on the tree that bears the nest, or on the ground passing from one pine to another, these caterpillars march in a singular fashion, which has given them the name of processionaries, because, in fact, they defile in a procession, one after the other, and in the finest order. “One, the first come—for amongst them there is perfect equality—starts on the way and serves as head of the expedition. A second follows, without a space between; a third follows the second in the same way; and always thus, as many as there are caterpillars in the nest. The procession, numbering several hundreds, is now on the march. It defiles in one line, sometimes straight, sometimes winding, but always continuous, for each caterpillar that follows touches with its head the rear end of the preceding caterpillar. The procession describes on the ground a long and pleasing garland, which undulates to the right and left with unceasing variation. When several nests are near together and their processions happen to meet, the spectacle attains its highest interest. Then the different living garlands cross each other, get entangled and disentangled, knotted up and unknotted, forming the most capricious figures. The encounter does not lead to confusion. All the caterpillars of the same file march with a uniform and almost grave step; not one hastens to get before the others, not one remains behind, not one makes a mistake in the procession. Each one keeps its rank and scrupulously regulates its march by the one that precedes it. The file-leader of the troop directs the evolutions. When it turns to the right, all the caterpillars of the same line, one after the other, turn to the right; when it turns to the left, all, one after the other, turn to the left. If it stops, the whole procession stops, but not simultaneously; the second caterpillar first, then the third, fourth, fifth, and so on until the last. They would be called well-trained troops that, when defiling in order, stop at the word of command and close their ranks. “The expedition, simply a promenade, or a journey in search of provisions, is now finished. They have gone far away from their nest. It is time to go home. How can they find it, through the grass and underbrush, and over all the obstacles of the road they have just traveled? Will they let themselves be guided by sight, obstructed though it be by every little tuft of grass; by the sense of smell, which wafted odors of every sort may put at fault? No, no; processionary caterpillars have for their guidance in traveling something better than sight or smell. They have instinct, which inspires them with infallible resources. Without taking account of what they do, they call to their service means that seem dictated by reason. Without doubt, they do not reason, but they obey the secret impulse of the eternal Reason, in whom and through whom all live. “Now, this is what the processionary caterpillars do in order not to lose their way home again after a distant expedition. We pave our roads with crushed stone; caterpillars are more luxurious in their highways: they spread on their road a carpet of silk, they walk on nothing but silk. They spin continually on the journey and glue their silk all along the road. In fact, each caterpillar of the procession can be seen lowering and raising its head alternately. In the first movement, the spinneret, situated in the lower lip, glues the thread to the road that the procession is following; in the second, the spinneret lets the thread run out while the caterpillar is taking several steps. Then the head is lowered and lifted again, and a second length of thread is put in place. Each caterpillar that follows walks on the threads left by the preceding ones and adds its own thread to the silk, so that in all its length the road passed over is carpeted with a silky ribbon. It is by following this ribbon conductor that the processionaries get back to their home without ever losing their way, however tortuous the road may be. “If one wishes to embarrass the procession, it suffices to pass the finger over the track so as to cut the silk road. The procession stops before the cut with every indication of fear and mistrust. Shall they go on! Shall they not go on! The heads rise and fall in anxious quest of the conductor threads. At last, one caterpillar bolder than the others, or perhaps more impatient, crosses the bad place and stretches its thread from one end of the cut to the other. A second, without hesitating, passes over on the thread left by the first, and in passing adds its own thread to the bridge. The others in turn all do the same. Soon the broken road is repaired and the defile of the procession continues. “The processionary caterpillar of the oak marches in another way. It is covered with white hairs turned back and very long. One nest contains from seven to eight hundred individuals. When an expedition is decided on, a caterpillar leaves the nest and pauses at a certain distance to give the others time to arrange themselves in rank and file and form a battalion. This first caterpillar has to start the march. Following it, others place themselves, not one after another, like the processionaries of the pine, but in rows of two, three, four, and more. The troop, completed, begins to move in obedience to the evolutions of its file-leader, which always marches alone at the head of the legion, while the other caterpillars advance several abreast, dressing their ranks in perfect order. The first ranks of the army corps are always arranged in wedge formation, because of the gradual increase in the number of caterpillars composing it; the remainder are more or less expanded in different places. There are sometimes rows of from fifteen to twenty caterpillars marching in step, like well-trained soldiers, so that the head of one is never beyond the head of another. Of course the troop carpets its road with silk as it marches, so as to find its way back to its nest. “The processionaries, especially those of the oak, retire to their nests to slough their skins, and these nests finally become filled with a fine dust of broken hairs. When you touch these nests, the dust of the hairs sticks to your hands and face, and causes an inflammation that lasts several days if the skin is delicate. One has only to stand at the foot of an oak where the processionaries have established themselves, to receive the irritating dust blown by the wind, and to feel a smart itching.” “What a pity the processionaries have those detestable hairs!” Jules exclaimed. “If they hadn’t—” “If they hadn’t, Jules would much like to see the caterpillars’ procession. Never mind; after all, the danger is not so great. And then, if one had to scratch one’s self a little, it would not be a serious matter. Besides, we will turn our attention to the processionary of the pine, less to be feared than that of the oak. At the warmest part of the day we will go and look for a caterpillars’ nest in the pine wood; but Jules and I will go alone. It would be too hot for Emile and Claire.” About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jean-Henri Fabre (2018). The Story-book of Science. Urbana, Illinois: Project Gutenberg. Retrieved https://www.gutenberg.org/cache/epub/56795/pg56795-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html.

PROCESSIONARY CATERPILLARS

The Story-book of Science by Jean-Henri Fabre, is part of the HackerNoon Books Series. You can jump to any chapter in this book here . BUTTERFLIES CHAPTER XXI. BUTTERFLIES OH, how beautiful! Oh, my goodness, how beautiful they are! There are some whose wings are barred with red on a garnet background; some bright blue with black circles; others are sulphur-yellow with orange spots; again others are white fringed with gold-color. They have on the forehead two fine horns, two antennæ, sometimes fringed like an aigrette, sometimes cut off like a tuft of feathers. Under the head they have a proboscis, a sucker as fine as a hair and twisted into a spiral. When they approach a flower, they untwist the proboscis and plunge it to the bottom of the corolla to drink a drop of honeyed liquor. Oh, how beautiful they are! Oh, my goodness, how beautiful they are! But if one manages to touch them, their wings tarnish and leave between the fingers a fine dust like that of precious metals. Now their uncle told the children the names of the butterflies that flew on the flowers in the garden. “This one,” said he, “whose wings are white with a black border and three black spots, is called the cabbage butterfly. This larger one, whose yellow wings barred with black terminate in a long tail, at the base of which are found a large rust colored eye and blue spots, is called the swallow-tail. This tiny one, sky-blue above, silver-gray underneath, sprinkled with black eyes in white circles, with a line of reddish spots bordering the wings, is called the Argus.” And Uncle Paul continued thus, naming the butterflies that a bright sun had drawn to the flowers. “The Argus ought to be difficult to catch,” observed Emile. “He sees everywhere; his wings are covered with eyes.” Female                        Male Cabbage Butterfly “The pretty round spots that a great many butterflies have on their wings are not really eyes, although they are called by that name; they are ornaments, nothing more. Real eyes, eyes for seeing, are in the head. The Argus has two, neither more nor fewer than the other butterflies.” “Claire tells me,” said Jules, “that butterflies come from caterpillars. Is it true, Uncle?” “Yes, my child. Every butterfly, before becoming the graceful creature which flies from flower to flower with magnificent wings, is an ugly caterpillar that creeps with effort. Thus the cabbage butterfly, which I have just shown you, is first a green caterpillar, which stays on the cabbages and gnaws the leaves. Jacques will tell you how much pains he takes to protect his cabbage patch from the voracious insect; for, you see, caterpillars have a terrible appetite. You will soon learn the reason. “Most insects behave like caterpillars. On coming out of the egg, they have a provisional form that they must replace later by another. They are, as it were, born twice: first imperfect, dull, voracious, ugly; then perfect, agile, abstemious, and often of an admirable richness and elegance. Under its first form, the insect is a worm called by the general name of larva. “You remember the lion of the plant-lice, the grub that eats the lice of the rosebush and, for weeks, without being able to satisfy itself, continues night and day its ferocious feasting. Well, this grub is a larva, that will change itself into a little lace-winged fly, the hemerobius, whose wings are of gauze and eyes of gold. Before becoming the pretty red ladybird with black spots, this pretty insect, which, in spite of its innocent air, crunches the plant-lice, is a very ugly worm, a slate-colored larva, covered with little points, and itself very fond of plant-lice. The June bug, the silly June bug, which, if its leg is held by a thread, awkwardly puffs out its wings, makes all preparations, and starts out to the tune of ‘Fly, fly, fly!’ is at first a white worm, a plump larva, fat as bacon, which lives under-ground, attacks the roots of plants, and destroys our crops. The big stag-beetle, whose head is armed with menacing mandibles shaped like the stag’s horns, is at first a large worm that lives in old tree-trunks. It is the same with the capricorn, so peculiar for its long antennæ. And the worm found in our ripe cherries, which is so repugnant to us, what does it become? It becomes a beautiful fly, its wings adorned with four bands of black velvet. And so on with others. Red-humped Apple Tree “Caterpillar” (a) moth; (b) caterpillar natural size “Well, this initial state of the insect, this worm, first form of youth, is called the larva. The wonderful change which transforms the larva into a perfect insect is called metamorphosis. Caterpillars are larvæ. By metamorphosis they turn into those beautiful butterflies whose wings, decorated with the richest colors, fill us with admiration. The Argus, now so beautiful with its celestial blue wings, was first a poor hairy caterpillar; the splendid swallow-tail began by being a green caterpillar with black stripes across it and red spots on its sides. Out of these despicable vermin metamorphosis has made those delightful creatures which only the flowers can rival in elegance. “You all know the tale of Cinderella. The sisters have left for the ball, very proud, very smart. Cinderella, her heart full, is watching the kettle. The godmother arrives. ‘Go,’ says she, ‘to the garden and get a pumpkin.’ And behold, the scooped-out pumpkin changes under the godmother’s wand, into a gilded carriage. ‘Cinderella,’ says she again, ‘open the mouse-trap.’ Six mice run out of it, and are no sooner touched by the magic wand than they turn into six beautiful dappled-gray horses. A bearded rat becomes a big coachman with a commanding mustache. Six lizards sleeping behind the watering-pot become green bedizened footmen, who immediately jump up behind the carriage. Finally the poor girl’s shabby clothes are changed to gold and silver ones sprinkled with precious stones. Cinderella starts for the ball, in glass slippers. You, apparently, know the rest of it better than I. “These powerful godmothers for whom it is play to change mice into horses, lizards into footmen, ugly clothes into sumptuous ones, these gracious fairies who astonish you with their fabulous prodigies, what are they, my dear children, in comparison with reality, the great fairy of the good God, who, out of a dirty worm, object of disgust, knows how to make a creature of ravishing beauty! He touches with his divine wand a miserable hairy caterpillar, an abject worm that slobbers in rotten wood, and the miracle is accomplished: the disgusting larva has turned into a beetle all shining with gold, a butterfly whose azure wings would have outshone Cinderella’s fine toilette.” About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jean-Henri Fabre (2018). The Story-book of Science. Urbana, Illinois: Project Gutenberg. Retrieved https://www.gutenberg.org/cache/epub/56795/pg56795-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html.

Butterflies come from Caterpillars

THE CABBAGE-CATERPILLAR

The Life of the Caterpillar by Jean-Henri Fabre, is part of the HackerNoon Books Series. You can jump to any chapter in this book here . THE ARBUTUS CATERPILLAR CHAPTER VII. THE ARBUTUS CATERPILLAR I have not found many species of urticating caterpillars in the small corner of my investigations. I know of two only: the Pine Caterpillar and the Arbutus Caterpillar. The latter belongs to the genus Liparis. His Moth, who is a glorious snowy white, with the last rings of the abdomen bright russet, is very like Liparis auriflua, Fab., from whom she differs not only in size—she is smaller—but, above all, in the field of operations selected by her caterpillar. Is the species classified in our lists? I do not know; and really it is hardly worth while to enquire. What does a Latin name matter, when one cannot mistake the insect? I shall be sparing of detail concerning the Arbutus Caterpillar, for he is far less interesting in his habits than the Pine Processionary. Only his ravages and his poison deserve serious attention. On the Sérignan hills, sunny heights upon which the Mediterranean vegetation comes to an end, the arbutus, or strawberry-tree, abounds: a magnificent shrub, with lustrous evergreen foliage, vermilion fruit, round and fleshy as strawberries, and hanging clusters of little white bells resembling those of the lily of the valley. When the frosts come at the approach of December, nothing could be more charming than the arbutus, decking its gay verdure with both fruits and flowers, with coral balls and plump little bells. Alone of our flora, it combines the flowering of to-day with the ripening of yesterday. Then the bright-red raspberries—the darbouses, as we call them here—beloved by the Blackbird, grow soft and sweet to the palate. The housewives pluck them and make them into preserves that are not without merit. As for the shrub itself, when the season for cutting has come, it is not, despite its beauty, respected by the woodman. It serves, like any trivial brushwood, in the making of faggots for heating ovens. Frequently, too, the showy arbutus is ravaged by a caterpillar yet more to be dreaded than the woodcutter. After this glutton has been at it, it could not look more desolate had it been scorched and blackened by fire. The Moth, a pretty little, snow-white Bombyx, with superb antennary plumes and a cotton-wool tippet on her thorax, lays her eggs on a leaf of the arbutus and, in so doing, starts the evil. You see a little cushion with pointed ends, rather less than an inch in length; a white eiderdown, tinged with russet, thick, very soft and formed of hairs fixed with a little gum by the end that points towards the upper extremity of the leaf. The eggs are sunk in the thickness of this soft shelter. They possess a metallic sheen and look like so many nickel granules. Hatching takes place in September. The first meals are made at the expense of the native leaf; the later ones at the expense of the leaves all around. One surface only is nibbled, usually the upper; the other remains intact, trellised by the network of veins, which are too horny for the new-born grubs. The consumption of leaves is effected with scrupulous economy. Instead of grazing at hazard and using up the pasturage at the dictates of individual caprice, the flock progresses gradually from the base to the tip of the leaf, with all heads ranged in a frontal attack, almost in a straight line. Not a bite is taken beyond this line, until all that lies on this side of it is eaten up. As it advances, the flock throws a few threads across the denuded portion, where nothing remains but the veins and the epidermis of the opposite surface. Thus is woven a gossamer veil serving as a shelter from the fierce rays of the sun and as the parachute which is essential to these weaklings, whom a puff of wind would carry away. As the result of a more rapid desiccation on the ravaged surface, the leaf soon begins to curl of its own accord, curving into a gondola which is covered by a continuous awning stretched from end to end. The herbage is then exhausted. The flock abandons it and begins again elsewhere in the near neighbourhood. After various temporary pastures of this kind, in November, when the cold weather is at hand, the caterpillars settle permanently at the end of a bough. Nibbled one by one on their upper surfaces, the leaves of the terminal bunch draw close to their neighbours, which, excoriated in their turn, do the same, until the whole forms a bundle, which looks as if it had been scorched, lashed together with magnificent [ ]white silk. This is the winter habitation, whence the family, still very feeble, will not issue until the fine weather returns. 154 The assembling of this leafy framework is not due to any special industry on the caterpillars’ part; they do not stretch their threads from leaf to leaf and then, by pulling at these ropes, bring the various pieces of the structure into contact. It is merely the result of desiccation on the nibbled surfaces. Fixed cables, it is true, solidly bind together the leaves brought close to one another by the contraction due to their aridity; but they do not in any way play the part of a motive mechanism in the work of the assemblage. No hauling-ropes are here, no capstans to move the timbers. The feeble creatures would be incapable of such effort. The thing happens of itself. Sometimes a floating thread, the plaything of the air, enlaces some adjacent leaf. This chance footbridge tempts the explorers, who hasten to strip the accidental prize; and, without other labour, yet one more leaf bends of its own accord and is added to the enclosure. For the most part, the house is built by eating; a lodging is procured by dint of banqueting.[ ] 155 A comfortable house, tightly closed and well-caulked, proof against rain and snow. We, to guard ourselves against draughts, put sand-bags against the cracks of our doors and windows; the extravagant little Arbutus Caterpillar applies pipings of silk-velvet to his shutters. Things should be cosy inside, however damp the fog. In bad weather, the rain drips into my house. The leaf-dwelling knows nothing of such troubles, so true is it that animals often enjoy advantages which relegate human industry to the second rank. In this shelter of silk and foliage, the worst three or four months of the year are passed in a state of complete abstinence. No outings; not a bite of food. In March, this torpor ceases; and the recluses, those starving bellies, shift their quarters. The community now splits up into squads, which spread themselves anyhow over the adjacent verdure. This is the period of serious devastation. The caterpillars no longer confine themselves to nibbling one surface of the leaf; their keen appetites demand the whole of it, down to the stalk. And now, stage by stage, halt by halt, the arbutus is shorn bare. The vagabonds do not return to their winter [ ]dwelling, which has become too closely cramped. They reassemble in groups and weave, here, there and everywhere, shapeless tents, temporary huts, abandoned for others as the pasturage round about becomes exhausted. The denuded boughs, to all seeming ravaged by fire, take on the look of squalid drying-grounds hung with rags. 156 In June, having acquired their full growth, the caterpillars leave the arbutus-tree, descend to earth and spin themselves, amid the dead leaves, a niggardly cocoon, in which the insect’s hairs to some extent supplement its silk. A month later, the Bombyx appears. In his final dimensions, the caterpillar measures nearly an inch and a quarter in length. His costume does not lack richness or originality: a black skin with a double row of orange specks on the back; long grey hairs arranged in bunches; short, snow-white tufts on the sides; and a couple of brown-velvet protuberances on the first two rings of the abdomen and also on the last ring but one. The most remarkable feature, however, consists of two tiny craters, always open wide; two cunningly fashioned goblets which might have been wrought from a drop of red sealing-wax. [ ]The sixth and seventh segments of the abdomen are the only ones that bear these vermilion goblets, placed in the middle of the back. I do not know the function of these little cups. Perhaps they should be regarded as organs of information, similar to the Pine Processionary’s dorsal mouths. 157 The Arbutus Caterpillar is much dreaded in the village. Woodcutters, faggot-binders, brushwood-gatherers, all are unanimous in reviling him. They have such a painfully vivid memory of the irritation that, when I listen to them, I can hardly repress a movement of the shoulders to relieve the imaginary itching in the middle of my back. I seem to feel the arbutus-faggot, laden with its glowing rags, rubbing my bare skin. It is, it appears, a disagreeable job to cut down the shrub alive with caterpillars during the hottest part of the day and to shake, under the blows of the axe, that sort of upas-tree, shedding poison in its shade. As for me, I have no complaint to make of my relations with the ravager of the arbutus. I have very often handled him; I have applied his fur to the tips of my fingers, my neck and even my face, for hours at a time; I have ripped up [ ]the nests to extract their populations for the purpose of my researches; but I have never been inconvenienced. Save in exceptional circumstances, the approach of the moult perhaps, this would need a skin less tough than mine. 158 The thin skin of a child does not enjoy the same immunity, as witness little Paul, who, having helped me to empty some nests and to collect the inhabitants with my forceps, was for hours scratching his neck, which was dotted with red wheals. My ingenuous assistant was proud of his sufferings in the cause of science, which resulted from heedlessness and also perhaps from bravado. In twenty-four hours, the trouble disappeared, without leaving any serious consequences. All this hardly tallies with the painful experiences of which the woodcutters talk. Do they exaggerate? That is hardly credible; they are so unanimous. Then something must have been lacking in my experiments: the propitious moment apparently, the proper degree of maturity in the caterpillar, the high temperature which aggravates the poison. To show itself in its full severity, the urtication demands the cooperation of certain undefined [ ]circumstances; and this cooperation was wanting. Chance perhaps will one day teach me more than I want to know; I shall be attacked in the manner familiar to the woodcutters and shall pass a night in torment, tossing and turning as though on a bed of live coals. 159 What the direct contact of the caterpillar did not teach me the artifices of chemistry will demonstrate with a violence which I was far from expecting. I treat the caterpillar with ether, just as I treated the slough of the Pine Processionary. The number of the creatures taken for the infusion—they are pretty small as yet, are scarcely half the size which they will attain when mature—is about a hundred. After a couple of days’ maceration, I filter the liquid and leave it to evaporate freely. With the few drops that remain I soak a square of blotting-paper folded in four and apply it to the inner surface of my fore-arm, with a thin rubber sheet and a bandage. It is an exact repetition of what I did with the Pine Processionary. Applied in the morning, the blister hardly takes effect until the following night. Then by degrees the irritation becomes unendurable; [ ]and the burning sensation is so acute that I am tormented every moment with the desire to tear off the bandage. However, I hold out, but at the cost of a sleepless, feverish night. 160 How well I now understand what the woodcutters tell me! I had less than a square inch of skin subjected to the torture. What would it be if I had my back, shoulders, neck, face and arms tormented in this fashion? I pity you with all my heart, you labourers who are troubled by the hateful creature. On the morrow, the infernal paper is removed. The skin is red and swollen, covered with tiny pimples whence ooze drops of serous fluid. For five days the itching persists, with a sharp, burning pain, and the running from the pimples continues. Then the dead skin dries and comes off in scabs. All is over, save the redness, which is still perceptible a month later. The demonstration is accomplished; the Arbutus Caterpillar, capable as he is of producing, under certain conditions, the same effects which I obtain by artificial means, fully deserves his odious reputation. About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jean-Henri Fabre (2021). The Life of the Catepillar. Urbana, Illinois: Project Gutenberg. Retrieved October https://www.gutenberg.org/cache/epub/66762/pg66762-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html.

THE ARBUTUS CATERPILLAR

The Life of the Caterpillar by Jean-Henri Fabre is part of the HackerNoon Books Series. Read this book online for free on HackerNoon! : The Life of the Caterpillar Title : Jean-Henri Fabre Author : Alexander Teixeira de Mattos Translator : November 18, 2021 [eBook #66762] Most recently updated: April 5, 2022 Release date : English Language Table of Links CHAPTERS I. THE PINE PROCESSIONARY: LAYING THE EGGS II. THE PINE PROCESSIONARY: THE NEST; THE COMMUNITY III. THE PINE PROCESSIONARY: THE PROCESSION IV. THE PINE PROCESSIONARY: METEOROLOGY V. THE PINE PROCESSIONARY: THE MOTH VI. THE PINE PROCESSIONARY: THE STINGING POWER VII. THE ARBUTUS CATERPILLAR VIII. AN INSECT VIRUS IX. THE PSYCHES: THE LAYING X. THE PSYCHES: THE CASES XI. THE GREAT PEACOCK XII. THE BANDED MONK XIII. THE SENSE OF SMELL XIV. THE CABBAGE-CATERPILLAR About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jean-Henri Fabre (2021). The Life of the Catepillar. Urbana, Illinois: Project Gutenberg. Retrieved October https://www.gutenberg.org/cache/epub/66762/pg66762-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html.

The Life of the Caterpillar by Jean-Henri Fabre - Table of Links

THE PINE CATERPILLAR

Field, Forest and Farm by Jean-Henri Fabre, is part of the HackerNoon Books Series. You can jump to any chapter in this book here . CATERPILLARS AND BUTTERFLIES CHAPTER XLVIII. CATERPILLARS AND BUTTERFLIES “Of all insects butterflies are the most graceful, the most worthy of childhood’s eager desire. Oh, how beautiful they are! Poised on a flower, they seem to form a part of it and to animate it with the gentle beating of their wings. You cautiously draw near, you crouch down and make a quick clutch with the hand, but the beautiful creature is no longer there. It is waiting for you on another flower, quite unconcerned at your designs on its freedom. Let us leave it, then, to flit from one cluster of lilacs to another, and occupy ourselves a while with an account of its structure and habits. “All butterflies have four wings suitable for flying, two upper and larger ones, and two lower ones half hidden under the others. Here we find no horny sheaths such as are worn by the scarab and the June-bug, no protecting case under which the membranous wings are folded to guard against laceration. The scarab is a clod-hopper, well acquainted with the harsh irregularities of the ground. He pursues his plodding course on foot, and it is only rarely that he spreads his wings in flight. The butterfly is a delicate creature of the air, very seldom using its legs for walking, but finding them of service when it [ ]alights upon a flower. It has, therefore, four broad wings, wide-spread and always ready for flight. 250 “And what wings! Words are lacking to describe them fitly. Some are white as if coated with flour, others sky-blue, and still others sulphur-yellow. Again you find them of a flame-like red or dark crimson. Some have round spots like eyes, which look at you with their large pupils encircled by azure, mother-of-pearl, or gold; and you will see others speckled with black, adorned with silver lace, or fringed with carmine. If you touch them they leave on your fingers a brilliant powder beside which the filings of the precious metals would look dull. Butterfly “This dust might be called the butterfly’s plumage. It consists of scales of extreme delicacy, placed regularly side by side like the tiles on a roof, and attached by one end to the membrane of the wing just as a bird’s feathers have their quills implanted in its skin. Grasped roughly between the fingers, the wing parts with its delicate covering; it loses its ornamental [ ]scales and shows naked to the view. It is then a fine, translucent membrane traversed by a network of tiny ribs, or nervures, as they are called, which hold it expanded and give it firmness. 251 “At rest, butterflies do not all carry their wings in the same manner. Those that fly by day and go from flower to flower in full sunlight, hold their wings erect on the back and folded against each other. These butterflies are also recognized by their brilliant coloring, their lightness on the wing, their grace of form. Those, on the other hand, that fly either by night or at evening twilight bear their wings, in repose, either outspread or else lightly folded in a sort of roof-shape. They are of bulkier form and heavier than the first-mentioned, and sombre hues predominate in their costume. 1 “Whether friends of light or fond of darkness, whether courting the sunshine or lovers of the night, butterflies are invariably very abstemious, finding all the nourishment they require in the tiny drop of honey exuding at the bottom of a flower. Many flowers have long and narrow mouths; no insect muzzle is slender enough to reach into flasks like these and lap up the syrup, and therefore butterflies must have a special instrument adapted to the purpose. “This instrument is the proboscis, as fine as a hair and long enough to reach to the exquisite drop, however deeply it may be hidden. When not in use, this [ ]proboscis is kept tightly coiled at the entrance to the insect’s mouth. When it finds a flower to its taste, it uncoils this spiral and extends the proboscis in a long thread which plunges into the narrow-necked bottle and proceeds to suck up the coveted drop. If we wished to drink from a flask of similar shape, we should use a straw or reed. Its proboscis is the butterfly’s straw with which it takes its refreshment from the flowers. 252 “As with other insects, the butterfly is at first a larva or worm, very different, you understand, from what the creature will afterward become. The larvæ of butterflies are nothing in the world but caterpillars.” “Oh, how disgusting!” cried Emile, making a wry face. “But nevertheless so it is,” proceeded his uncle. “Caterpillars, repugnant creatures to us, change into those magnificent butterflies that we are never tired of admiring. What was ugly becomes beautiful, what was frightful finds itself the proud possessor of grace and charm. Caterpillar “There are some caterpillars that have the skin quite naked and mottled with various colors in a manner not unpleasing to the eye. To touch these worms, even to handle them, inspires little or no [ ]fear, so harmless do they look. But there are others, of a larger size, which carry on the back, toward the rear, a menacing horn, a sort of hook, of which it seems prudent to beware. This apprehension, however, is groundless: the horn is inoffensive, being not a weapon but a mere ornament. Caterpillars thus equipped become large butterflies flying in the late evening twilight. 253 “Still others have an even more repulsive look, bristling as they do with clusters of prickles and with tufts of long hair. From these ugly creatures, whose very touch would be so disagreeable to us and would make us utter cries of fear, come some of the most beautiful butterflies of our part of the world. Such is the caterpillar that browses the leaves of the nettle and becomes the Vanessa Io or peacock-butterfly. It is black with white spots, and wears a rough armor of toothed prickles. The butterfly, the Vanessa, has wings of a bright brick-red adorned with a large eye of mingled black, violet, and blue. Who would ever imagine, unless he had seen the transformation or heard about it, that so ravishing a creature has such an origin? “But for all their hairs and prickles caterpillars need cause us no alarm. Nothing about them justifies the fear they too often inspire. No caterpillar is poisonous, no caterpillar seriously injures the hands that touch it. Yet it is well not to repose full confidence in hairy caterpillars: sometimes the hairs become detached and cling to the fingers, causing rather lively itching sensations. But a little scratching [ ]ordinarily ends the trouble. Accordingly any one who should hereafter be afraid of caterpillars would not deserve the privilege of chasing butterflies. 254 “Every larva is a gluttonous eater, because it must grow big and accumulate the wherewithal for its subsequent changes of form. Nor are caterpillars lacking in response to this serious duty. The future butterfly’s welfare is at stake. Made solely for eating, the larvæ gnaw and browse unceasingly. Each one has its own particular kind of sustenance, its chosen plant, and nothing else meets the requirements. The larva of the Vanessa selects the nettle and turns with aversion from all substitutes; that of the Pieris, a white butterfly with black spots, will have only the cabbage; that of the Machaon, a butterfly with large wings that end in a sort of tail, feasts on fennel; and so of others. “After attaining the full size assigned to them by nature, caterpillars, like other larvæ, prepare for their transformation. Some shut themselves up in a cocoon made from a silken thread that they spin from their mouth, while others content themselves with binding together, by means of the small supply of thread at their disposal, particles of earth, bits of wood, and hairs plucked from their own body. Thus is obtained, at small expense, a sufficiently substantial temporary abode. Finally, still others, especially among the butterflies that fly in the daytime, merely seek a retreat on the side of some wall or against a tree-trunk, and there suspend themselves in a girdle of silk.[ ] 255 “These precautions taken, the caterpillar strips off its skin and becomes a nymph, but very different from that which the stag-beetle showed us. The coleopter, in its nymph stage, was already recognizable, with its branching mandibles, its legs folded on its stomach, and its wings enclosed in their sheaths. The butterfly, on the contrary, is not at all discernible under the casing of the nymph. This nymph, with skin as tough as parchment, is an object little indicative of its true nature and much more suggestive of the kernel of some strange fruit than of any animal form. Because of its shape, so different from that shown to us by ordinary nymphs, it has received a special name, that of chrysalis. “This word means golden sheath. Sometimes, notably in the case of the Vanessa, the chrysalis is adorned with gilding; but in the great majority of instances the suggestive name is not deserved, a uniform chestnut hue, darker or lighter, being the usual color of the chrysalis. Ripened by long repose, this species of animal shell splits down the back and releases the perfect insect, complete in all its attributes. The butterfly passes a few festive days amid the flowers, and before dying lays eggs whence will spring caterpillars to continue the race.” About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Jean-Henri Fabre (2022). Field, Forest and Farm. Urbana, Illinois: Project Gutenberg. Retrieved October https://www.gutenberg.org/cache/epub/67813/pg67813-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html.

CATERPILLARS AND BUTTERFLIES

Scientific American, Volume XXIV., No. 12, March 18, 1871 by Various, is part of the HackerNoon Books Series. You can jump to any chapter in this book . Silk culture. here SILK CULTURE. BY W. V. ANDREWS. A vague notion that silk culture ought to form one of the industrial pursuits of the American people seems to be prevalent enough; but it does not take practical hold upon anybody. The nearest approach to anything practical which we have seen, in late years—excepting, of course, what has been done in California—occurred in New York in July last, when a number of gentlemen pledged themselves, according to a report given in the of July 30, "to promote the native silk trade." Tribune The gentlemen present at the meeting represented the most prominent silk manufacturing and importing houses in this country. What these gentlemen have since done towards promoting the native silk trade, I do not know, but, having pledged themselves, it is presumed they have done something. At the meeting, of which the article is a report, dags, and other things, manufactured from California silk, were exhibited; and the report goes on to say that "Mr. Warren also exhibited samples of native and foreign cocoons, and of raw and thrown silk, together with the common and , species of silkworms which feed upon oak leaves. * * Also the which feeds upon mulberry leaves; also the , of which the cocoons are early as good as the cocoons of worms fed upon mulberry leaves." Tribune Cecropia Bombyx Cynthia Bombyx Yamamai Bombynx Pernyi I have given this extract, word for word, as it stands in the columns of the , because it contains more blunders of one kind or another than I remember ever to have seen in so many words. is certainly not very particular as to its food, but it is not an oak feeder. will thrive on nothing except ailanthus, though it will eat one or two other things, but not oak. The , on the other hand, will eat oak, indeed it is its natural food; but Mr. Warren errs greatly when he says that it will feed on mulberry. The last clause of the sentence, which says that cocoons of are nearly as good as those of worms fed on mulberry leaves, must be a sort of entomological joke, of which the point is not discoverable by me, so I pass it over. Tribune Cecropia Cynthia Yamamai Pernyi I do not, however, notice this report on account of its grammatical and entomological mistakes. It is because of the evil effects it may, and probably will, have on amateur silk culturists, that I notice it; for most assuredly, failure will be the result of all attempts to produce silk cocoons by feeding the caterpillars of the different moths on the food prescribed by Mr. Warren. Any patriotic, money making farmer, who believes in the , purchasing eggs and setting his worms to feed upon mulberry, which they refuse to eat, and consequently, all die, will probably give up silk culture as being nothing more or less than a humbug. And thus the cause is injured. Tribune Yamamai For several years past, I have made some experiments in the rearing of the silkworms, giving the result of my experience in the first year in Vol. II., page 311, of the ; and of a subsequent year in the , for November, 1869. American Naturalist Entomologist The paper in the is devoted to my experiments with the ailanthus silkworm, (G. & R.), a naturalized species from the East. In that paper, I have said all that is necessary to say at present, on that species, except perhaps that I am further convinced, from the inspection of samples of sewing and other silks, made from the cocoons of , that one day it will be reared very extensively in the United States. It is perfectly hardy, is double brooded, and may be reared by any one possessed of a few acres of land, which may be good enough for growing ailanthus trees, but not good enough to grow any thing else. The labor of a few old men, or women, or even children, is sufficient for the purpose. The cost is therefore trifling. Naturalist Samia Cynthia Cynthia The objection to the cultivation of is that the cocoon cannot be reeled. But it can be carded, and if the Chinese can make excellent silk goods from it, why cannot we? I suspect, too, that silk can be worked in with cotton, or, perhaps, woolen goods, adding to their beauty and durability (for it is indestructible in wear), and thus open up branches of manufacture hitherto unknown. Cynthia Cynthia For manufacturers of coarse goods, I have no doubt that the silk from our native silk moths, and , may be used. Indeed, I believe that M. Trouvelot is of opinion that may fairly enter into competition with , the ordinary mulberry silkworm. The worm, however, is rather difficult to rear. Cecropia Polyphemus Polyphemus Bombyx mori In reference, however, to , it is well known that the silk crop in France and Italy has been reduced greatly, and the price of silk goods consequently enhanced, by prevalence of disease among the worms. So much is this the case, that silk breeders have been obliged to look around for some silk-producing moths whose products may, at any rate, supplement the deficient crop. , as already mentioned as one of these, and two others mentioned by Warren in the reports above adverted to, are at present the subjects of experiment. Bombyx mori Cynthia Tribune My article mentioned before as appearing in the is mainly devoted to my experiments, and those of my correspondents, with , which, as I said before, is an oak feeder. In Japan, which is its native country, it feeds, in its wild state, on . Whether that oak be found in America, I do not know, but it is of little importance, as the worm will feed on almost any species of oak, although I think that it prefers white oak. The importance of acclimatizing new species of silk moths is of so much prospective importance, that I shall devote the remainder of this article to the consideration of whether and may not be naturalized here. Any one, who happens to have the number of the containing the article above alluded to, may find it worth while to read it, but as many persons may not be able to obtain that number, I will here repeat the substance of my remarks, adding as much new matter as subsequent experience has afforded. American Entomologist Yamamai Quercus serrata Yamamai Pernyi Entomologist The silk from the being considered superior to that produced by any other of the substitute silk moths, great efforts have been made in Europe to acclimatize it; but, it must be confessed, hitherto with but slight success. There are exceptions, however, particularly among amateurs in Germany, sufficient to show that success is possible. The Baron de Bretton raises about 27,000 cocoons annually. Yamamai In this country but little has been done, or attempted, and that little has not been very successful. The fact is, that is a difficult moth to rear in a country like this, where in early spring the temperature varies so much; but that success is possible, I am convinced. Yamamai The moth emerges from the cocoon in the latter part of the summer, copulates, lays its eggs, and of course dies. And now the trouble commences; that is, with eggs laid, say in Japan, from whence we mainly get our supplies. As soon as the egg is laid, the young larva commences its formation, which in a short time (about one month) is perfected. It lies in the egg in a quiescent state till early spring. If the egg remain in the country where it is laid, and is kept at a pretty even temperature, and free from damp, the caterpillar emerges in a healthy condition. But if it be removed some thousands of miles, passing in the transit from heat to cold, and back to heat again: and if, in addition, it be closely confined in a damp place, with little or no circulation of air, the egg is attacked by a fungus which sometimes prevents the worm from emerging at all; or, if it emerge, it is in a sickly condition. That these conditions obtain in the transit of eggs, from Japan to Europe, and thence to America, is evident enough; and it may, therefore, require the efforts of many persons, continued for a long time, to enable us to acclimatize the . But this is all that is required, and I feel confident that ultimate success is certain. Yamamai On hatching out, the worm is of a brimstone yellow, and thinly covered with strong hairs; after the second month it is greenish, with black, longitudinal streaks, and the thread a dull coral red color. After the third month it becomes of a fine apple green, with yellow tubercles on each segment, from which issue a few black hairs. The head and legs are chocolate brown, the prolegs reddish, and the first segment edged with pinkish color. The greatest care is necessary, as the spring advances, to prevent the eggs from hatching before the oak buds are ready for them, and the temperature must be regulated with the greatest nicety. If the eggs can be kept somewhere about 50 deg. Fah., it would be quite safe; higher than that the mercury should not be allowed to rise, till you are quite ready for the worms, and, on the other hand, the eggs should not be allowed to freeze. On emerging from the eggs, the worms should be allowed either to crawl to the oak branches, or rather to sprigs obtained for that purpose, the end of which should be placed in a jar, or bottle, of water, or the worms may be placed on gently with a camel-hair brush. The leaves should be well sprinkled with clean water that the caterpillars may drink. From some cause, not well understood, the young caterpillars have a tendency to wander; and if care be not taken many may be lost. To prevent this, it is well to cover the branches with a gauze bag, tied tightly around the stems, and close to the bottle. Care must also be taken that the caterpillars do not find their way into the water, which they assuredly will if they have the opportunity, committing suicide in the most reckless manner. If the number of caterpillars be few, it is a good plan to place them at the outset with their food, in a wide-mouthed bottle, covering the mouth with gauze. The branches, particularly if the weather be warm, must still be occasionally sprinkled, so that the caterpillars may have the opportunity of drinking. It must be remembered that experiment is necessary in rearing , but one thing is ascertained, and that is, that the worms must not be exposed to direct sunshine, at least not after seven or eight in the morning. If the spring be warm, I am inclined to think that a northeastern exposure is the best, and we may sum up by saying, that comparatively cool and moist seasons are more favorable to success that hot, dry weather. In America the worms suffer in the early spring, from the rapid changes of temperature, 40° at 9 a.m. increasing to 70° in the afternoon and falling off to freezing point during the night. The worms cannot stand this. They become torpid, refuse to eat, and consequently die. To prevent this, if the nights be cold, they must be placed where no such change of temperature can occur. Yamamai It is scarcely necessary to say that an ample supply of fresh food must be always supplied, but it may not be amiss to say that it is well, when supplying fresh branches, to remove the worms from the old to the new. The best way of doing this is to clip off the branch, or leaf, on which the worm is resting, and tie, pin, or in some way affix the same to the new branches. If this be not done, they will continue to eat the old leaf, even if it be withered, and this induces disease. If the worm has fastened itself for the purpose of moulting, the best way is to remove the entire branch, clipping off all the dried leaves before so removing it. These remarks apply, in general, to the treatment of all silkworms, except . Bombyx mori The results of numerous experiments with go to show that it is, as I said before, a difficult worm to rear; but it has been reared near New York to the extent of eight hundred cocoons out of sixteen hundred eggs, and this, although not a remunerative result, is encouraging. Yamamai The Chinese silk moth, , also an oak feeder, has been successfully raised by me and by others, for several years. Eggs have been sold to persons in States widely separated, and the results show that this worm is perfectly hardy. Aulterea Pernyi The moth winters in the cocoon, emerges early in May, if the weather be warm, pairs readily, and lays from 150 to 200 eggs. These hatch out in about fourteen days, and like , always about 5 or 6 o'clock in the morning. It is necessary to be on the alert to catch them on hatching only, and to remember that they are vagabonds, even to a greater extent than . Consequently similar precautions must be taken. Yamamai Yamamai The worm on emerging from the egg is large, and of a chocolate-brown color. After the first month it becomes of a yellowish green; head, pale brown; feet and prolegs of nearly the same color. The body has numerous reddish tubercles, from which issue a few reddish hairs. At the base of some of the tubercles on the anterior segments are silvery patches. The worm is much more easily reared than that of , but still great care is needed; fresh food of course is essential, and a slight sprinkling of the branches and worms in very warm weather is advisable; although it is not so necessary as with . It is remarkable that worms, fed in the open air, on oak trees, do not, at present, thrive so well as those fed in-doors, but this, doubtless, is a question of acclimation. I advise white oak ( ) as food, if it can be readily obtained, but failing that, pin oak ( ) will do; and I have no doubt that they will feed on any kind of oak. They will, indeed, feed on birch, and on sweet gum ( ), but oak is the proper food. It is worthy of remark that bears a strong resemblance to our , but it is more easily reared in confinement, and double brooded; an important fact for the silk culturist. From American reared eggs, I obtained cocoons as early as July 4th, the perfect insect emerging on July 31. Copulation immediately ensued, and the resulting eggs hatched only on August 12, ten days only from the time of laying; and as the worm feeds up in about four or five weeks, this affords plenty of time for rearing the second brood. It must be remembered that on the quantity and quality of food, much depends, not only with but with all caterpillars. By furnishing food sparingly the time of feeding would be much prolonged. Pernyi Yamamai Yamamai Pernyi Quercus alba Quercus palustris Liquidambar Pernyi Polyphemus Pernyi I have already said that both and should be fed under shelter for the reasons given, but there is another reason of less importance. The young worms are liable to be attacked by spiders and wasps, and even after the second month, they are not safe from these enemies. I have seen a wasp bite a large caterpillar in two, carry off the anterior section and return for the posterior, which had held on by its prolegs. Did the wasp anticipate this fact, and therefore carry off the anterior part first? As to the spiders, they form a series of pulleys and hoist the caterpillar off its legs, sucking its juices at leisure. Yamamai Pernyi And now I must devote a few words to the advisability of silk culture from a pecuniary point of view. , or the ordinary mulberry silkworm, is, of course, the best to rear, if you can obtain healthy eggs. But this is the difficulty, and thence arises the necessity of cultivating other silk-producing species. I imagine that silk can be produced in most of the States of the Union, and manufactured from the cocoon at a large profit; but for the present, we will leave the manufacture out of the question, and consider only, whether it will not pay to rear eggs and cocoons for sale? It must be remembered that European manufacturers are at this moment largely dependent on foreign countries for the supply of both eggs and cocoons; and this, because of the general prevalence of disease among all the races of . And now, to what extent does the reader suppose this dependence exists? Of cocoons I have no returns at hand, but, of raw silk, European manufacturers purchase, annually, not less than $160,000,000 worth; and of eggs ( ) to the value of $10,000,000. This, then, is a business of no trifling amount. California seems to be alive to the fact, and, I am informed, raised, this last season, $3,000,000 cocoons; and, for sale, about 4,000 ounces of eggs, worth at least $4 per ounce, wholesale. Now, there is no earthly reason why California should monopolize this business. Why are not companies formed in other States for this purpose? or if private individuals lack the enterprise or the means, why do not the legislatures, of those States most favorably located, do something by way of starting the business? A few thousand dollars loaned, or even donated, may prove to be a valuable investment for the people at large, and, even supposing a failure, would not be a very great loss to any body. Bombyx mori Bombyx mori Bombyx mori So far as farmers are concerned, it may interest them to know that one man in England, Capt. Mason, clears $50 per acre by rearing silkworms ( in this case), and I much doubt whether any crop raised here pays as well. Bombyx mori By way of commencement, then, let everybody that has sufficient leisure set to work, and rear as many silkworms, of the above-named species, as he possibly can; and if the process be not remunerative in a pecuniary sense, it most assuredly will be in the amount of pleasure and knowledge obtained. One caution I must give to those who cultivate . Although requires sprinkled branches, does not; nor must the leaves be furnished to them while wet with rain or dew. Bombyx mori Yamamai Bombyx mori .—The article upon this subject, giving experiments of Fairbairn and others, referred to in our editorial upon the same subject, in our last issue, was crowded out by press of matter. The reader will find it in the present number. Effect of Cold upon Iron About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Various (2006). Scientific American, Volume XXIV., No. 12, March 18, 1871. Urbana, Illinois: Project Gutenberg. Retrieved https://www.gutenberg.org/cache/epub/19180/pg19180-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at , located at . www.gutenberg.org https://www.gutenberg.org/policy/license.html

Stories, News & Mentions about CATERPILLAR

Caterpillar’s Stories on HackerNoon

Caterpillar's News & Mentions