The Natural History of Population

The Natural History of Population

The Natural History of Population

The Natural History of Population

Excerpt

This book includes what appear to be some of the more significant results of the studies of human fertility in relation to the problems of population, which have been a major object of my interest and effort for a good many years. In particular, it is largely based upon the unique material that we have been able to collect and analyse during the last six years, because of the generous support that has been given to our work by the Milbank Memorial Fund in New York, for which it is a pleasure and privilege to express again our deep gratitude. The present book by no means exhausts the rich store of valuable data contained in that material -- and still less does it tell the whole story of the natural history of population. Only a little beginning is made, in either respect. It is hoped that in due time another volume may appear, that will supplement this one, and carry the study further.

As to the general arrangement of this book the following may be said. In order that the reader wishing to follow the account straight through may not be put off the track by digressions, the notes have been relegated to a special section immediately following the text. In the text they are indicated by small consecutive superscript numbers.

To indicate bibliographic references in the text the author's name is followed by the last two figures of the year of the publication referred to, as Jones (28), meaning a paper or book by Jones published in 1928. Since any particular Jones is unlikely to have written papers in both 1828 and 1928, no serious confusion is likely to be caused by the omission of the century figures. In cases where there might possibly be confusion due to two Joneses with identical initials having operated scientifically a century apart, pains have been taken to indicate the century in the text reference.

Long, but essential, statistical tables that would cumber the text are put in Appendix I, and numbered with . . .

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