ENTOMOLOGY.
I have lately observed a curious fact, which I have never seen noticed in any book which has fallen in my way, viz. that it is the tail of the caterpillar which becomes the head of the butterfly. I found it hard to believe till I had convinced myself of it in a number of instances. The caterpillar weaves its web from its mouth, finishes with the head downwards, and the head, with the six front legs, are thrown off from the chrysalis, and may be found dried up, but quite distinguishable, at the bottom of the web. The butterfly comes out at the top. Is this fact generally known?—Corresp. Mag. Nat. Hist.