The Myth of Open Spaces: Australian, British, and World Trends of Population and Migration. By W. D. Forsyth. Melbourne: Melbourne University Press [Toronto: Oxford University Press]. 1942. Pp. xviii, 226. ($4.25) - Population Problems: A Cultural Interpretation: By Paul H. Landis. (American Sociology Series, edited by Kimball Young.) New York: The American Book Company. 1943. Pp. xii, 500. ($3.75) - Group Differences in Urban Fertility: A Study Derived from the National Health Survey. By Clyde V. Kiser. Baltimore: The Williams and Wilkins Co. 1942. Pp. xii, 284. ($2.50) - Contraception and Fertility in the Southern Appalachians. By G. W. Beebe. Baltimore: The Williams and Wilkins Co. 1942. Pp. xii, 274. ($2.50) - The New Population Statistics. By R. R. Kuczynski. (National Institute of Economic and Social Research, Occasional Paper, no. 1.) Cambridge: At the University Press [Toronto: Macmillan Company of Canada]. 1942. Pp. 31. (45c.) - The Population of Bristol. By H. A. Shannon and E. Grebenik. (National Institute of Economic and Social Research, Occasional Paper, no. 2.) Cambridge: At the University Press [Toronto: Macmillan Company of Canada]. 1943. Pp. 93. ($2.25) - Two Papers on the Degrees of Mortality of Mankind. By Edmund Halley. Edited with an introduction by Lowell J. Reed. (Reprints of Economic Tracts.) Baltimore: Johns Hopkins Press. 1942. Pp. vi, 21. ($1.25)