Smithsonian Institution and United States National Museum. Annual Report of the Board of Regents to July, 1896. Pp. 727.--Bean, Barton A. Notes on a Collection of Fishes from Mexico, etc. Pp. 4.--Cook, O. F. American Oniscoid Diploda, etc. Pp. 16, with plates.--Coquillet, D. W. Report on Japanese Diptera. Pp. 36.--Enkle, Arthur. Topaz Crystals in the Mineral Collection of the Museum. Pp. 10.--Gilbert, C. N. Caulolepis Longidens, Gill, on the Coast of California. P. 1.--Jordan, David Starr, and Evermann, Barton D. The Fishes of North and Middle America. Part III. Pp. 978.--Marlatt, C. L. Japanese Hymenoptera of the Family Teuthredonidæ. Pp. 16.--Mearns, Edgar A. Mammals of the Catskill Mountains. Pp. 20.--Moore, J. Percy. The Leeches of the United States National Museum. Pp. 20, with plates.--Oberholser, Harry C. Revision of the Wrens of the Genus Thryomanes, Sclater. Pp. 30.--Rathbun, Mary J. Brachyura Collected by the Steamer Albatross between Norfolk, Va., and San Francisco. Pp. 50, with plate; and Fresh-Water Crabs of America. Pp. 30.--Smith, Hugh M. Amphiura, or the Congo Snake, in Virginia. P. 1.--Smith, John B., and Dyar, Harrison G. The Lepidopterous Family Noctuidæ of Boreal North America, etc. Pp. 194, with plates.--Starks, Edwin C. Osteology and Relationships of the Family Zeidæ. Pp. 8, with plates.--Stearns, Robert E. C. A Species of Actæon from the Quaternary Deposits of Spanish Height, San Diego, Cal. Pp. 3; and Cythera (Tivala) Crassateloides, Conrad, etc. Pp. 8, with plate.--Stejneger, Leonhard. A New Species of Spiny-tailed Iguana from California. P. 1.--Test, Frederick C. Variations of the Tree Frog, Hyla Regilla. Pp. 16, with plate.--True, Frederick W. Nomenclature of the Whalebone Whales, etc. Pp. 20.--Walcott, C. D. Cambrian Brachiopoda, Obolus, and Singulella, etc. Pp. 36. Sue, Eugène. The Silver Cross, or the Carpenter of Nazareth. New York: International Publishing Company. Pp. 151. Sullivan, Christine Gordon. Elements of Perspective. American Book Company. Pp. 96. Terrestrial Magnetism. An International Quarterly Journal. L. A. Bauer and Thomas French, Jr., Editors. University of Cincinnati. Pp. 46, with plates. 60 cents. $2 a year. Vines, Sidney H. An Elementary Text-Book of Botany. New York: The Macmillan Company. Pp. 611. $2.25. Volta Bureau, Washington, Publications of Catalogue of Books by Prof. A. Melville Bell.--Some Differences in the Education of the Deaf and the Hearing. Pp. 15.--International Reports of Schools for the Deaf. Pp. 27.--Bell, A. G. Methods of Instructing the Deaf in the United States. Pp. 4.--Gordon, J. C. The Difference between the Two Systems of Teaching Deaf-mutes the English Language. Pp. 4.--Gilman, Arthur. Miss Helen Adams Keller's First Year of College Preparatory Work. Pp. 14.--Bell, Mabel Gardiner. The Story of the Rise of the Oral Method in America as told in the Writings of the Hon. Gardiner G. Hubbard. Pp. 50.