1. Davis, Carl H.: Gynecology & Obstetrics, Hagerstown, Md., W. F. Prior & Co., Vol. I, Chapt. 11, p. 1.
2. Ibid.: Vol. I, Chapt. 11, p. 8.
3. Personal communication. Grusetz, Matthew W., and Polayes, Silik, H., Cumberland Street Hospital, Brooklyn reported a case of interstitial pregnancy at term before the Brooklyn Gynecological Society, state that a careful search of the literature, including Wynn's figures to 1917 and their own from 1917 to April 1944, show that only 199 cases of interstitial pregnancy have been recorded.