Results of Ornithological Explorations in the Commander Islands and in Kamtschatka

The Poisonous Snakes of North America

The Fur Seals and Fur-seal Islands of the North Pacific Ocean: The history, condition, and needs of the herd of fur seals resorting to the Pribilof Islands

Contributions Toward a Monograph of the Noctuidæ of Boreal America: Revision of the Genus Cucullia; Revision of the Dicopinæ; Revision of Xylomiges and Morrisonia, Volume 15