 The best of authority traces the beginning of ite decline to the first appearance, about 1850, of immigration on a large scale. Our great philosopher, Benjamin Franklin, estimated six children to a normal American family in his day. The average at the...  Race Improvement in the United States - 133 페이지저자: American Academy of Political and Social Science - 1909 - 220 페이지전체보기 - 도서 정보
 | 1909 - 772 페이지
...survival will ultimately depend. The birth rate in the United States in the days of its AngioSaxon youth was one of the highest in the world. The best...there has been a decline of about one-third in the fruitf ulness of the people in fifteen years. New Zealand even complains of the lack of children to... | |
 | Royal Anthropological Institute of Great Britain and Ireland - 1908 - 612 페이지
...Anglo-Saxon youth was one of the highest in the world. The best of authority traces the beginning of ite decline to the first appearance, about 1850, of immigration...about one-third in the fruitfulness of the people in 15 years. New Zealand even complains of the lack of children to fill her schools. The facts concerning... | |
 | Smithsonian Institution. Board of Regents - 1910 - 936 페이지
...course of a century the proportion of our entire population, consisting of children under the age of 10, has fallen from one-third to one-quarter. This, for...United States, is equivalent to the loss of about 7.000,000 children. So alarming has this phenomenon of the falling birth rate become in the Australian... | |
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