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paragraphs in the Lancet^[1] under the heading, "Control of Conception by Irradiation," in which a brief account is given of the work of Markovitz and Kriser. The procedure suggested by Markovitz being the production of a temporary sterility by means of a minimal dose in one of the married pair, and then "irradiating the man before the ability to conceive returns in the woman, as indicated by the recommencement of menstruation. Since the duration of the sterilization in the man is as yet unknown, he admits that periodical examinations of the spermatic fluid will be necessary. . . . The treatment has the merit of avoiding finality."

It is outside the scope of the present survey to discuss sterilization fully, and the above notes are merely included as a connecting link between the present work and some of the many medical works on sterilization to which reference should be made.

It is much to be desired in the interests of the race that inexpensive methods of temporary sterility should be devised, improved, and rendered available in practice for those in whom disease or a degenerate or undeveloped mental capacity, render likely to produce detrimentals if they breed without restriction.