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contraceptives and considered no other equal to it. I met also another medical practitioner who specialized in birth control and who had had a thousand satisfactory cases in which this spring had been used as a contraceptive. Altogether I know of over 1,056 cases of its successful use, as against one (and a doubtful second) of its failure, the latter due to neglect and improper use no impartial scientist could rest content to condemn a method on such data.

British divergence of medical opinion is due, I think, to the one or two recorded failures which have been given undue prominence by those who did not perceive the cause of the error in application of the method to an unsuitable patient.

It should be noted that there is a considerable range of sizes and variety of makes to suit the special configuration of the individual patient. A special carrier for insertion is required and after-care is essential. The medical practitioners who use it largely in America have special after-care nurses whose business it is to keep in touch with patients who have had the spring inserted.

Were such serious and proper consideration of the means of contraception devoted to the subject in this country as it deserves,