This beautiful diurnal–the “Camberwell Beauty” of England, and very inappropriately styled the “Mourning Cloak” by Americans, for is it not clothed in a mantle of imperial purple, fringed with gold lace?–is well known to hybernate. It is occasionallv found in stone piles in the winter, but I think its most common hiding-place is in the culvert walls of our country roads and turnpikes. It requires a cold, moist, dark place, or it will dry up.