2 JULY 1892, Page 33

Marriage and Disease. By S. A. K. Strahan, M.D. (Kegan

Paul, Trench, and Co.)—There is a. great deal of valuable information in this volume. Dr. Strahan has studied his subject carefully, and treats it with discretion, and in a reasonable, moderate temper. We commend it to our readers without dwelling on any of the details. It may be remarked, however, that while the author deprecates consanguineous marriages, he maintains that, per se, they have no tendency to generate disease. Hereditary weaknesses already existing in the family are accentuated in the offspring of such alliances ; but two quite healthy parents, how- ever closely related, will have healthy children.