Recent advances in methods of cancer detection by Papanicolaou's1vaginal smear and the subsequent development of the "surface-biopsy"2cell-scraping method offer a valuable method of uterine cancer control through early diagnosis. A danger exists, however, that the method might fall into disrepute if hysterectomy were widely practiced on the basis of a cytologic diagnosis alone. Especially could this become true if inexperienced and inadequately trained cytologists were to influence the surgeon's judgment unduly. It therefore seems indicated that every effort to confirm a positive cell diagnosis by biopsy be made before subjecting the patient to radical treatment. The sensitive "surface biopsy" method, when applied routinely, is bringing to light more and more cases of preclinical cervical cancer. This poses a genuine problem for the surgeon or gynecologist in attempting to confirm the cell diagnosis by cervical biopsy. The work of Novak,3Schiller,4Pund and Auerbach5