BUTTER FACTORY. (See Creamery.) BUTTERFLY. Insects of the genus Papilio (Linn.) in the imago state. Many of them are butter it should he pressed entirely solid, in such forms of packages as will best enable this to be accomplished. Orange county tubs and barrels leave but little to be desired in this direction. They are easily cleaned, eompaet and quite water tight; another form is also much used, and is much liked by grocers, since the butter may be easily turned out for cut ting up. If butter is to be transported in summer it must never be allowed to become even partially soft. Hence, many de vices have been invented for accomplishing this purpose, one of which is shown with a dead air space at the side, the butter so arranged that it is carried in pound pats, perfectly cold. In large cities, so packed, it brings high prices, when branded with the name of well-known respectable produced from caterpillars most injurious to cul tivated plants and trees, as the gooseberry and cabbage butterflies; which see. They have four
wings, imbricated with downy scales. The body is hairy, and the tongue convoluted in a spiral form. There are numerous species, now formed into a group, subdivided into tribes, families and genera. The butterfly deposits its eggs, which hatch into caterpillars.
These change to chrys alides, which again, after undergoing by bernation, come forth as the perfect butterfly, The food of the perfect insect is honey only, but the group, in the caterpillar state, con tains some most destructive insects to vegetation. The butterflies are among the most beautiful of the insect tribes. This, however, does not pre vent their larva; from also being, many of them, most destructive to vegetation, probably quite as much so as the lame of moths—another beauti ful family, in their perfect state. Hence, they should be destroyed wherever found. The cut shows (r, caterpillar; b, butterfly; c, d, sections of caterpillar enlarged.