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PAGE 2

Spiders
by [?]

Astronomers and microscopists make use of the strongest lines of the spider’s web to form some of their delicate instruments. The thread is drawn in parallel lines at right angles across the field of the eye-piece at equal distances, so as to make a multitude of fine divisions, scarcely visible to the naked eye, and so thin as to be no obstacle to the view of the object. One means of classifying spiders is by the number of eyes they possess. These are usually two, six, or eight in number. The fangs with which the spider seizes its prey are hollow, and emit a venomous fluid into the body of the victim, which speedily benumbs and kills it. In Palestine and other countries a kind of spider is found which is entirely nocturnal in its habits, and never either hunts or feeds in daylight, but makes itself a little home, where it abides safely till sunset. It is called the trap-door spider, from the curious way in which it protects the entrance to its nest. It bores a hole in the dry earth of a bank a foot or more in depth, lines the hole with silk, and forms a lid, or trap-door, which secures the spider from all intruders. I have one of these nests in which the door is a wonderful piece of mechanism, quite round and flat, about as large as a threepenny piece, made of layers of fine earth moistened and worked together with silk, so that it is tough and elastic and cannot crumble. The hinge is made of very tough silk, and is so springy that when opened it closes directly with a snap. The outside is disguised with bits of moss, glued on so that no one can see where the door is. The only way of opening it is with a pin, and even then the spider will hold on inside with his claws, so that it is not easy to overcome his resistance. Amongst some insects sent to me from Los Angelos is a huge “Mygale,” a hairy monster of very uninviting aspect. When its legs are outspread it measures nearly six inches across, and one can well believe the stories one hears of its killing small birds if it finds them on their nests. A gentleman living in Bermuda is said to have tamed a spider of the species “Mygale,” and made it live upon his bed-curtain and rid him of the flies and mosquitoes which disturbed his nightly rest. He thus describes this remarkable pet: “I fed him with flies for a few days, until he began to find himself in very comfortable quarters, and thought of spinning a nest and making his home. This he did by winding himself round and round, combing out the silk from the spinnerets at the end of his body till he had made a nest as large as a wine-glass, in which he sat motionless until he saw a fly get inside our gauzy tent; then I could fancy I saw his eyes twinkle as his victim buzzed about, till, when it was within a yard or so of him, he took one spring and the fly was in his forceps, and another leap took him back to his den, where he soon finished the savoury morsel. Sometimes he would bound from side to side of the bed and seize a mosquito at every spring, resting only a moment on the net to swallow it. In another corner of the room was the nest of a female Mygale of the same species. She spun some beautiful little silk bags, larger than a thimble, of tough yellow silk, in each of which she laid more than a dozen eggs. When these hatched the young spiders used to live on her back until they were old enough to hunt for themselves. I kept my useful friend on my bed for more than a year and a half, when, unfortunately, a new housemaid spied his pretty brown house, pulled it down, and crushed under her black feet my poor companion.” This kind of spider, or an allied species, captures large butterflies in the tropical woods by hanging strong silken noozes from branches of trees, and they have been seen to kill small birds by this method. One of our British spiders lives under water in a dome-like cell of silk, which is filled with air like a diving-bell by the spider carrying down successive globules of air between its legs, which it liberates under the dome until it is filled; and the young are hatched there.