From the Department of Obstetrics, Touro Infirmary, New Orleans, La.

Presented at the Eighth Annual District VII Meeting of the American College of Obstetrics and Gynecology, Sept. 16, 1960, New Orleans, La.

Submitted for publication Sept. 27, 1960.

The author wishes to express his appreciation to Dr. Robert Ayerst and Dr. Jack Zoller, who helped compile much of the data, to Dr. George Sustendal who gave advice and criticism during the writing of this report, and to Dr. Harry Meyer without whose aid this paper could not have been written.