132 Biochcmical Proceedings, Hygienic Congress [Sept. 



air: Dr. J. J. R. Macleod, professor of physiology, Western Re- 

 serve Medical School, Cleveland, Ohio (page 147). 



7. Friday morning, September 27. The hygienic physiol- 

 ogy OF EXERCISE. {A) The influence of exercise on the nervous 

 System : Dr. Leon Asher, a. o. professor of physiology, Bern, Swit- 

 zerland {presented by Prof. L. B. Mendel). — {B) The influence of 

 exercise on the heart : Dr. R. Taif McKenzie, director of physical 

 education, University of Pennsylvania, Philadelphia, Pa. — (C) 

 Certain aspects of the influence of muscular exercise upon the respi- 

 ratory System : Dr. Theodore Hough, professor of physiology, Uni- 

 versity of Virginia, Charlottesville, Va. (page 148). — {D) Physical 

 training in the United States Naval Service: Dr. J. A. Murphy, 

 surgeon, U. S. N., U. S. Naval Academy, Annapolis, Md. 



Additional papers. The prevention of arteriosclerosis and 

 heart disease in otherwise healthy individuals past middle life: Dr. 

 Louis F. Bishop, New York City, — Tuberculosis and metabolism: 

 Dr. Diesing, chief physician, Recreation and Convalescent Home, 

 Gross-Hansdorf, Hamburg, Germany. — On the nature and impor- 

 tance of the diet as the most important factor of causal therapy in 

 severe diseases of the stomach and intestines, in nervous and mental 

 diseases, and in disorders of the circulation and of the metabolism : 

 Dr. W. Plönies, Hanover, Germany. — Public baths: Dr. Simon 

 Baruch, president, American Association for Promoting Hygiene 

 and Public Baths, New York City. — The significance of hydrother- 

 apy for hygiene, therapeutics and medical Instruction: Prof. Dr. 

 L. Brieger, Hydrotherapeutische Universitäts-Anstalt, Berlin, Ger- 

 many. — The importance of the nutritive salts for healthy and sick 

 people : Dr. R. Peters, Hanover, Germany. 



III. ABSTRACTS OF SOME OF THE PAPERS = 



The physiological significance of some substances used in the 



preservation of food 



JOHN H. long 



This paper dealt with the action on the human organism of a 

 number of substances employed as food preservatives, or otherwise, 

 in the preparation of food. 



* Reprinted f rom the official pamphlet containing " abstracts of papers to be 

 read at the congress," Sept. 23-28, 1912 (pp. 11-28). 



