Field Columbian Museum, Chicago. Publication No. 30. New Rodents from the Olympic Mountains. By D. G. Elliot. Pp. 4.--No. 31. Cold-Blooded Vertebrates from the Olympic Mountains. By S. E. Meek. Pp. 10.--No. 32. Catalogue of Mammals from the Olympic Mountains, Washington. By D. G. Elliot. Pp. 36, with plates.--No. 33. The Ores of Colombia. By H. W. Nichols. Pp. 56, with maps.--No. 34. The Mylagaulidæ. An Extinct Family of Sciuromorph Rodents. By E. S. Riggs. Pp. 8.--No. 35. A Fossil Egg from South Dakota. By A. C. Farrington. Pp. 8, with plates.--No. 36. Contributions to the Paleontology of the Upper Cretaceous Series. By W. N. Logan. Pp. 16, with plates.--No. 37. Mammals from Oklahoma Territory. By D. G. Elliot. Pp. 4.--No. 38. Mammals from the Indian Territory. By D. G. Elliot. Pp. 8. Heilprin, Angelo. Alaska and the Klondike. New York: D. Appleton and Company. Pp. 315. Hrdlicka, Dr. Ales. Anthropological Investigations of Children in the New York Juvenile Asylum. Pp. 86, with plates. Irish, Cyrus W. Qualitative Analysis for Secondary Schools. American Book Company. Pp. 100. James, Charles C. Practical Agriculture. American edition. Edited by John Craig. New York: D. Appleton and Company. Pp. 203. 80 cents. Jordan, David Starr. Imperial Democracy. New York: D. Appleton and Company. Pp. 293. $1.50. Jordan, David Starr, Leonhard Stejneger, and other Official Associates. The Fur Seals and Fur-Seal Islands of the North Pacific Ocean. Part IV. Washington: Government Printing Office. Pp. 384, with maps and plates. Kenne, A. H. Man Past and Present. Cambridge, England; New York: The Macmillan Company. Pp. 584. $3. Lavignac, Albert. Music and Musicians. New York: Henry Holt & Co. Pp. 504. $3. Miller, Olive Thorne. The First Book of Birds. Boston and New York: Houghton, Mifflin & Co. Pp. 149. Missouri Botanical Garden. Tenth Annual Report. William Trelease, Director. St. Louis. Pp. 209, with plates. Moon, J. Howard. Better-World Philosophy. Chicago: The Ward Waugh Company. Pp. 275.