X Biographical Data 



Henry Welch Lecturer, Mount Sinai Hospital, New York, 1939; Jones Lec- 

 turer, University of Oregon, 1940; Messenger Lecturer, Cornell University, 

 1942; Mellon Lecturer, University of Pittsburgh, 1942; National Sigma Xi 

 Lecturer, 1942; Guiteras Lecturer, American Urological Association, New 

 York, 1942. 



