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?oz Boy Scouts young fish or a young snail; but with most of the insects the young is very different from its parents. All butterflies and moths lay eggs, and these hatch into caterpillars which when full grown transform to what are-called pupae or chrys- alids- nearly motionless objects with all of the parts soldered together under an enveloping sheath. With some of the moths, the pupa? are surrounded 'by silk cocoons spun by the caterpillars just before finally transformin to pupre. With all butterflies the chrysalids are naked, except with one species which occurs in Central America in which there is a common silk cocoon. With the moths, the larger part spin cocoons, but some of them, like the owlet moths whose larv? are the cut- worms, have naked pupae, usnally under the surface of the ground. It is not difficult to study the transformations of the butterflies and moths, and it is ?lways very interesting to feed a caterpillar until it transfon?, in order to see what kind of a butterfly or moth comes out of the chrysalis. Take the monarch butterfly, for example: This is a large, reddish-brown butterfly, a strong flier, which is seen often flying about in the spring and agnin in the late. summer and autumn. This is one of the most remarkable butterflies in America. It is found all over the United States. It is one of the strongest fliers that we know. It passes the winter in the Southern states as an adult butterfly, probably hidden away in cracks under the bark of trees or elsewhere. When spring comes the butterflies come out and begin to fly toward the north. Wherever they find the milk-weed plant they stop and lay some eggs on the leaves. The caterpillars issue from the eggs, feed on the milkweed, transform to chrys?lids; then the butter- flies issue and continue the northward flight, stopping to lay eggs farther north on other milkweeds. By the end of June or July some Empty chrysalis of these Southern butterflies have found their and butterfly way north into Canad? and begin the re- turn flight southward. Along in early August they will be seefi at the summer resorts in the Catskill Mountains, and by the end of October they will have trave. led far down into the Southern states where they pass the winter. The caterpillar of the monarch or milkweed butterfly is a very. striking creature. It is nearly two inches long when full grown. Its head is yellow striped ?i? l?_?i?body is white with narrow black and yellow c?-?h?'e?'?fi?ch seg-