From the Margaret Sanger Research Bureau, New York, N. Y. Work supported by the Mills Grant through the Planned Parenthood Federation of America, Inc.

^*Present address: Vidt 2052, Buenos Aires, Argentina.

The radiopaque medium used in hysterosalpingography was supplied as Ethiodol, through the courtesy of E. Fougera & Co., Inc., Hicksville, N. Y.