Photo: Elliott & Fry, Ltd. 



PROFESSOR E. H. STARLING 



One of the leaders of modern physiology. He has made contribu- 

 tions of the highest importance towards an understanding of the 

 chemical correlation or harmonious working of the body, notably by 

 his study of internal secretions. Professors Bayliss and Starling 

 have done much together. 



Photo: Russell, London. 



PROFESSOR W. M. BAYLISS 



One of the leaders of modern physiology. He has made contribu- 

 tions of the highest importance to the study of internal secretions, 

 digestion and the action of ferments, electric phenomena associated 

 with vital processes, the production of heat in the body, and the regu- 

 lative functions in general. His Principles of General Physiology is 

 one of the great books of the science. Professors Bayliss and Starling 

 have conducted many investigations together. 



