H. Hensel 
Dr. H. Hensel obtained the M. D. degree from the University of 
Heidelberg. The subject of his major research work has been tem- 
perature regulation, thermoreceptors, general sense physiology, and 
peripheral circulation. His presentpositionisProfessor of Physiol- 
ogy, Director, Dept. of Physiology, University of Marburg/Lahn, 
Germany. 
Yojiro Kawamura 
Dr. Yojiro Kawamura obtained his M.D. at Osaka University in 
1945, whereupon he continued to complete the post doctoral course at 
Osaka University, obtaining a D. M. S. degree in 1952. His major 
research interest is neurophysiology. Currently he is Professor and 
Head, Department of Physiology, Dental School, Osaka University, 
Osaka, Japan, and also has the title, Lecturer in Physiology, School 
of Medicine, Osaka University. 
Thomas P. K. Lim 
Dr. Thomas P. K. Lim was graduated from the Severance Union 
Medical College, Seoul, Korea, in 1948 with a degree of M. D. At 
Northwestern University he was awarded M. S. and Ph. D. degrees 
in physiology in 1951 and 1953 respectively. He has been engaged 
in research in the fields of respiration, circulation, and body tem- 
perature regulation since this time. Currently Dr. Lim is the 
Director of the Cardiopulmonary Laboratory at the Tucson Medical 
Center, Tucson, Arizona. 
Ian C . Roddie 
Dr. Ian C. Roddie received the M.D. at the Queen's University 
of Belfast, North Ireland, in 1953. He has returned there, following 
a year of internship at the Royal Victoria Hospital, Belfast, to work 
as a Walter Dixon Memorial Scholar, Beit Memorial Research 
Fellow, and Lecturer in Physiology. Currently he has leave of 
absence from Belfast to work in the Department of Physiology and 
Biophysics at the University of Washington, Seattle, as Harkness 
Fellow of the Commonwealth Fund of New York. His main research 
interest has been in the regulation of the peripheral circulation in 
man. 
