PERKINS, George Henry, naturalist, born in East Cambridge, Massachusetts, 25 September, 1844. He was graduated at Yale in 186% and in 1869 received the degree of Ph. D. there for post-graduate studies. In 1869 he was elected to the chair of natural history in the University of Vermont, which appointment he has since filled, and for several years he has held also the office of state entomologist of Vermont. Professor Perkins has devoted considerable study to the archaeology of the Champlain valley, concerning which he has written numerous articles for periodicals and the transactions of scientific societies, of which he is a member, he has also lectured on natural history with success in various places. Besides technical papers in scientific journals, he has published, under the authority of the state of Vermont, reports "' On the Injurious Insects of Vermont" (3 vols., 1876-'7-'8); "More Important Parasites infesting Man and the Lower Animals" (1880); and "The Flora of Vermont" (1882).