The average couple seeking relief from sterility in the year 1920 had about a 20 per cent chance of accomplishing their desire if they were fortunately able to consult one of the half dozen physicians in this country who were at that time devoting particular attention to the subject. In the hands of other doctors, including eminent gynecologists and urologists, the likelihood of success was only half as great. Today there are many groups of expert workers whose percentage of cures ranges from 40 to 50. It would seem that the profession has some right to congratulate itself on this striking improvement in the management of a problem which is vitally important in the lives of more than 2,000,000 American homes and consequently, in the aggregate, of no small importance to the social and economic welfare of the nation. Huhner's method of postcoital examination and the Rubin test of tubal