CONTRIBUTORS TO VOL. L 



JOHN G. CURTIS, M.D., 



Professor of Physiology in Columbia University (College of Physicians and Surgeons). 



W. H. HOWELL, Ph. D., M. D., 



Professor of Physiology in the Johns Hopkins University. 



GRAHAM LUSK, Ph.D., F. R. S. (Edin.), 



Professor of Physiology in the University and Belle vue Hospital Medical College, New 

 York. 



W. T. PORTER, M.D., 



Associate Professor of Physiology in the Harvard Medical School. 



EDWARD T. REICHERT, M. D., 



Professor of Physiology in the University of Pennsylvania. 



