The average number of children per married man was 1.72. At Wesleyan it was found that 20 of the 208 graduates, from 1863 to 1870, remained single; the average number of children per married man was 2.31.
The only satisfactory study of the birth-rate of graduates of men's colleges is that recently made by John C. Phillips from the class lists of Harvard and Yale, 1850-1890, summarized in the accompanying graph (Fig. 37). In discussing his