1. This work has not been completed for publication and I wish to thank Dr. A. A. Kutzmann, surgical interne, University Hospital, for his courtesy in allowing me to publish this part of it.
2. This subject has been more fully dealt with in collaboration with Dr. A. E. Belt in a paper upon ureteral transplantation presented before the Urological Section of the A. M. A., May 22, 1922, at St. Louis.