ACCORDING to the report recently made to the International Office of Public Health (Bull. Off. internat. d'hyg. publ., 31, 1678; 1939) by Dr. H. B. Jeffs, the delegate for Canada, the population of Canada, exclusive of Yukon and the North Western Territories, amounted to about 11,106,000 on June 1, 1937. The marriage-rate for 1937 was 7·9 per 1,000 inhabitants. The highest percentage of marriages was registered in Manitoba (8·5) and the lowest in Saskatchewan (6·2). The birth-rate was 19·8 per 1,000 inhabitants as compared with 20·0 in 1936. The total number of live births was 219,988 in 1937, as compared with 220,371 in the previous year. The highest birth-rate was in the province of Quebec, where 75,635 births were registered or a rate of 24·1 per thousand inhabitants. In 1937, 113,694 deaths were registered in Canada or a mortality of 10·2 per 1,000 inhabitants, as compared with 9·7 in 1936. The total number of deaths of children under one year of age was 16,675 or a mortality of 76 per 1,000 live births as compared with 66 in 1936. The maternal mortality was 1,067 in 1937 or a mortality of 4·9 per 1,000 live births, as compared with 1,233 deaths or a rate of 5·6 in 1936. The highest maternal mortality was in Prince Edward Island (5·8 per 1,000 live births) and the lowest in Nova Scotia (2·7 per 1,000 live births).