Population and Migration.

The article presents information about various books on population and migration. The book "Causal Factors in Infant Mortality," by R.M. Woodbury is a statistical analyses of infant mortality. The data is from Children's bureau studies from urban centers, hence the conclusions apply primarily to infant mortality under urban. The infant mortality rate for the aggregate was thus 111.2 as compared with 103.3 for cities in birth registration area and 50.1 for New Zealand. Diseases of early infancy, which to a large extent have their origin in the condition and care of the mother during pregnancy and confinement, and gastric and intestinal diseases, which are due largely to improper feeding, account for more than two-thirds of the deaths. Male infants had higher death rates from practically every cause. This fact is attributed to physical vitality. A long section is devoted to frequency. The section on type of birth related to prematurity and plural births is also there. In the book "Principles of Human Geography," by P. Vidal De La Blache the authors assert that characteristic of human geography is conceived as the causal relation between culture and physical environment, and the attempt to unravel and understand these relations through a widesweeping historical method is essential.