"Although Professor Smith's systematic work on the freshwater and marine entitles him to a position in the front rank of American systematic zoologists, his studies on the life histories of the crustaceae proved of more general interest. He was the first to interpret correctly the successive stages in the larval life of the (1872, 1873); and his descriptions of the early life of other crustaceans, particulary of (1873), (1877), Pinnixa (1880), and (1883), have found a wide application in interpretation of the relationships of the various groups. For several years prior to 1874 he assisted Professor Verrill in the preparation of the classic "Report on the Invertebrate Animals of Vineyard Sound"; an ecological study that had no parallel in America for more than forty years. Professor Smith prepared all the material relating to the crustaceae and revised other parts of this widely used book."