chapter  III
21 Pages


This chapter is necessarily more difficult than the rest of the book. Those who have little previous knowledge of the subject will find that it requires a great deal of concentrated reading. If they prefer to sacrifice some points of detail and accept various conclusions without fully examining the arguments on which they are based, then they are advised to turn to the summary on pages 8991 as soon as they find themselves in difficulties. They should study this carefully, but need not be afraid to go on with the succeeding chapters even if they do not fully understand it. The significance of the various points should become clearer as the general analysis is applied to the particular problems raised by our population trends, and the reader can always refer back to this chapter. By adopting such a procedure he should be able to follow all the more important conclusions.