During the winter of 1891–2, I received from Miss Morton, of Newburgh, N, Y., six cocoons of P. columbia, which she had reared from ova, received from one of her correspondents in Ann Arbor, Mich. They were the first cocoons of that moth I had seen. Their extremely smali size as compared with Cecropia, their natty appearance and dark colour, relieved by flecks of white silk, was quite novel to me, so I frequently showed them to visitors.