Page:Popular Science Monthly Volume 69.djvu/525

Rh are given. These will not, however, materially affect the results. What is recorded here is the result of 316 marriages, and concerns 618 parents—not, of course, an adequate sample of the people of Great Britain, but, being drawn from all parts of the country and from every section of the great 'middle' class, sufficient, perhaps, until more adequate testimony can be obtained, to throw some light on all the previous statistics.

The first division of the marriages is into two classes; marriages with families intentionally limited, and marriages with families not so limited.

In order to avoid clumsy sentences, the term 'limited marriage' will be used to signify a marriage in which the family is intentionally limited, and the term 'unlimited marriage' one in which it has not been so limited. The following table gives all the marriages returned, arranged by the date and classified as limited (L) and unlimited (U),