The philosophy of marriage, in its social, moral, and physical relations : with an account of the diseases of the genito-urinary organs which impair or destroy the reproductive function, and induce a variety of complaints, with the physiology of generation in the vegetable and animal kingdoms ; being part of a course of obstetric lectures ... / by Michael Ryan, M.D. (member of the Royal Colleges of Physicians and Surgeons in London; physician to the Metropolitan Free Hostpital, etc.).