Kellerman, W. A. The Fourth State Catalogue of Ohio Plants. Systematic Check-list of the Pteridophytes and Spermatophytes. Columbus, Ohio. Pp. 65. 20 cents. Leonard, John W. Who's Who in America. A Biographical Dictionary of Living Men and Women in the United States, 1899, 1900. Chicago: A. N. Marquis & Co. Pp. 822. Long Island Hospital. Polhemus Memorial Clinic and Hoagland Laboratory. Forty-first Annual Announcement, 1899. Meunier, Stanislas. La Géologie Expérimentale. (Experimental Geology.) Paris: Félix Alcan. Pp. 311. Reprints. Adler, Cyrus. The International Catalogue of Scientific Literature. Second Conference. Pp. 43.--Chamberlin, T. C. A Systematic Source of Evolution of Provincial Faunas, and the Influence of Great Epochs of Limestone Formation upon the Constitution of the Atmosphere. Pp. 24; The Ulterior Basis of Time Divisions and the Classifications of Geologic History. Pp. 161; Lord Kelvin's Address on the Age of the Earth as an Abode fitted for Life. Pp. 20.--Croke, W. J. Architecture, Painting, and Printing at Subiaco. Pp. 21.--Daly, Reginald A. Three Days in the Caucasus. Pp. 15.--Harkness, H. W. Californian Hypogæous Fungi. Pp. 56, with plates.--Hobbs, W. H. The Diamond Fields of the Great Lakes. Pp. 16.--Lucas, Frederick A. The Fossil Bison of North America. Pp. 12, with plates.--Manson, Marsden. Observations on the Denudation of Vegetation. Pp. 18, with plates.--Mason, Otis T. The Latimer Collection of Antiquities from Puerto Rico, and the Guerde Collection of Antiquities from Pointe à Pitre, Guadeloupe. Pp. 837.--Pammel, Louis H. Anatomical Characters of Seeds of Leguminosæ. Pp. 262, with tables and plates.--Ravenel, Mazyck P. The Resistance of Bacteria to Cold. Pp. 5.--Veeder, M. A. Questions in regard to the Diphtheria Bacillus. Pp. 6.--West, Max. The Public Domain of the United States. Pp. 32.--Wilder, Burt C. Some Misapprehensions as to the Simplified Nomenclature of Anatomy. Pp. 24. Ripley, William Z. The Races of Europe. Accompanied by a Supplementary Bibliography of the Anthropology and Ethnology of Europe. Published by the Public Library of the City of Boston. New York: D. Appleton and Company. Pp. 624, with plates and Supplement, Pp. 160. $6. Stearns, Frederick, and Pilsby, Henry A. Catalogue of the Marine Mollusks of Japan. Detroit: Frederick Stearns. Pp. 196, with plates. Tilden, William A. A Short History of the Progress of Scientific Chemistry within our own Times. New York: Longmans, Green & Co. Pp. 276. United States Department of Agriculture: Bulletin No. 19. The Structure of the Caryopsis of Grasses with Reference to their Morphology and Classification. By P. B. Kennedy. Pp. 44, with plates.--No. 26. Lightning and the Electricity of the Air. By A. G. McAdie and A. J. Henry. Pp. 74, with plates.--No. 56. History and Present Status of Instruction in Cooking in the Public Schools of New York City. By Mrs. L. E. Hogan. Pp. 70.