when the marriage took place. Obviously marriages with the women at 45 or over being sterile must not be counted where it is the fecundity of the marriage that is being studied. The reader is warned therefore to make any necessary correction for this factor in the studies to follow in some of which unfortunately care has not been taken to make the necessary distinction.
Turn to Mount Holyoke College, the oldest of the great institutions for the higher education of women in this country. Professor Amy Hewes has collected the following data:
| Decade of graduation | Per cent remaining single | Per cent marrying |
|---|---|---|
| 1842-1849 | 14.6 | 85.4 |
| 1850-1859 | 24.5 | 75.5 |
| 1860-1869 | 39.1 | 60.9 |
| 1870-1879 | 40.6 | 59.4 |
| 1880-1889 | 42.4 | 57.6 |
| 1890-1892 | 50.0 | 50.0 |