Baillairge, Charles. Biographie. By E. La Selve. With Addenda by Léon Sortie. Pp. 15, and papers.--In French: On Communism. Pp. 45; Report on Engineering Works In Quebec. Pp. 90; Etymological Utility of Greek and Latin. Pp. 48; The Club of Twenty-one in 1879, Biography for Twenty Years. Pp. 12; Life, Evolution, and Materialism. Pp. 37; Antiquity of the Earth and Man. Pp. 23; Bibliography. Pp. xv.--In English: Technical Education of the People In Untechnical Language. Pp. 42; Educational Word Lessons. Pp. 19; How best to Learn or Teach a Language. Pp. 9; Address. P. 1. Baker, Major-General, Royal (Bombay) Engineers. Visions of Antichrist and his Times. St.-Leonards-on-Sea, England. Pp. 28. Binet, Alfred, Beaunis, H., and Ribot, Th. L'Année Psychologique. (The Psychological Year.) Fifth year. Paris, France. Libraire C. Reinwald. Schleicher Frères. Pp. 902. 15 francs. Bulletins, Reports, Transactions, etc. American Microscopical Society: Twenty-first Annual Meeting, Syracuse, N. Y., August 31 and September 1, 1899. Transactions. Pp. 370.--Astronomical Observatory of Harvard University: Vol. XXIII, Part II. Discussion of Observations made with the Meridian Photometer during the Years 1882-'88. By E. C. Pickering and O. C. Wendell. Pp. 100.--Johns Hopkins University: Circulars. July, 1899. Pp. 10. 10 cents.--Michigan Monthly Bulletin of Vital Statistics. April, 1899. Pp. 20.--Michigan Ornithological Club: Bulletin. April, 1899. Pp. 12.--Minnesota: Fourth Annual Report of the Chief Fire Warden. Pp. 148.--New York State Commission in Lunacy: Rules and Suggestions as to Plumbing Work, Drainage, etc. Pp. 93.--United States Department of Labor. July, 1899. Pp. 124.--United States Coast and Geodetic Survey: Notice to Mariners. No. 246. Pp. 14.--University of Tennessee: Record. Announcements for 1899, 1900. Pp. 96. Clayton, The, Air Compressors. Clayton Air-Compressor Works. New York. Pp. 70. Coulter, John M. Plant Relations. A First Book of Botany. New York: D. Appleton and Company. Pp. 264. $1.10. Crook, James K. The Mineral Waters of the United States and their Therapeutic Uses. New York and Philadelphia: Lea Brothers & Co. Pp. 588. $3.50. Dalton, Captain Davis. How to Swim. New York: G. P. Putnam's Sons. Pp. 133. $1. Gerhard, W. P. Sanitary Engineering of Buildings. Vol. I. New York: W. P. Comstock. Pp. 454. $5.--A Half Century of Sanitation, 1850-'99. Pp. 30. Gildemeister, E., and Hoffmann, Fr. Die Aetherischen Oele. (The Etherial Oils.) Prepared in behalf of the firm of Schimmel & Co. Leipzig and Berlin: Julius Springer. Pp. 919. Gould, the late Benjamin Apthorp. Cordoba Photographs. Photographic Observations of Star Clusters. Lynn, Mass.: the Nichols Press. Pp. 533, with 37 plates. Text in Spanish and English. Iowa Geological Survey. Annual Report. 1898, with accompanying Papers. Samuel Calvin, State Geologist; H. F. Bain, Assistant State Geologist. Pp. 572, with maps.