Bulletins, Proceedings, Reports, etc. Boston Society of Natural History: Vol. XXIX. No. 2. Variation and Sexual Selection in Man. By E. T. Brewster. Pp. 16; No. 3. Notes on the Reptiles and Amphibians of Intervale, New Hampshire. By Glover M. Allen. Pp. 16; No. 4. Studies in Diptera Cyclorhapha. By G. & N. Hough. Pp. 8; No. 5. Contributions from the Gray Herbarium of Harvard University. New Series: No. 17. By B. L. Robinson and J. M. Greenman. Pp. 12.--Dominion of Canada: Parliamentary Standing Committee on Agriculture and Colonization. Improvements In Crop Growing. By Prof. James W. Robertson. Pp. 39.--International Correspondence Schools, Scranton, Pa.: General Circular. Pp. 32.--Liberal University, Silverton, Oregon: Announcements. Pp. 18.--Society of American Authors: Bulletin for July, 1899. Pp. 22.--University of Michigan, Department of Medicine and Surgery: Annual Announcement for 1899-1900. Pp. 91.--United States Artillery Journal: Index to Vol. X, 1898. Pp. 12. Carpenter, George H. Insects, their Structure and Life. A Primer of Entomology. New York: The Macmillan Company. Pp. 404. $1.75. Daniels, Winthrop Moore. The Elements of Public Finance, including the Monetary System of the United States. New York: Henry Holt & Co. Pp. 383. $1.50. Grotius, Hugo. Proceedings at the Laying of a wreath on the Tomb of, July 4, 1899, by the Commission of the United States to the International Peace Conference. Pp. 48. Howard, John R., editor. Educational Nuggets. New York: Ford, Howard & Hulbert. Pp. 215. 50 cents. McIlvaine, Charles, and Macadam, R. K. Toadstools, Mushrooms, and Fungi, Edible and Poisonous. (Specimen pages.) Indianapolis. Ind.: The Bowen-Merrill Company. (Author's Edition.) $10. Massee, George. A Text-Book of Plant Diseases caused by Cryptogamic Parasites. New York. The Macmillan Company. Pp. 458. $1.60. Mellen, George E. New Pointers for Amateurs (Photography). Published by the author. Times Building, Chicago. Pp. 46, with blanks. 15 cents. Miller, Prof. Kelly. The Primary Needs of the Negro Race. Washington: Howard University. Pp. 18. Oregon Short Line Railroad. Where Gush the Geysers. (Guide to Yellowstone National Park.) Pelley, W. H., Knoxville, Ill. Christian Government. Pp. 44. 10 cents. Pfungst, Dr. Arthur. Ein Deutscher Buddhist. (A German Buddhist.) Theodor Schultze. Stuttgart. Pp. 51. Rector, L. E., Translator and Editor. Montaigne on the Education of Children. New York: D. Appleton and Company. (International Education Series.) Pp. 191. Reprints: Billings, S. A., and Englehardt, H. A. Observations on a New Coal-Tar Product. Pp. 7.--Goldmann, J. A. Prophylactic Treatment of the Uric-acid Diathesis. Pp. 8.--Kingsley, Carl. Methods of Determining the Frequency of Alternating Currents. Pp. 11.--Kunz, George F. The Production of Precious Stones in 1897. Pp. 22.--Shimer, P. W. Carbon Combustions in a Platinum Crucible. Pp. 12.