1913] Alfred N. Richards 275 



and guests of the Societies of the Experimental Biological Sciences. 

 It was again demonstrated that this method of entertainment, by 

 bringing all of the members together under conditions permitting 

 informal discussion and exchange of ideas, adds greatly to the 

 pleasure and value of the meeting. 



Abstracts of the papers. The abstracts of the papers will be 

 published in the February number of the "American Journal of 

 Physiology. 



Washington University Medical School, 



IL THE AMERICAN SOCIETY OF BIOLOGICAL CHEMISTS 



Alfred N. Richards 



The sessions of the seventh annual meeting of the American 

 Society of Biological Chemists were held in the medical buildings 

 of Western Reserv^e University, Cleveland, Ohio, December 30, 

 1912-January I, 191 3. The scientific programs, which were of ex- 

 ceptional interest, are appended. 



First Session. December 30, 9 a. m. Presiding officer: 

 President A. B. Macallum. 



A. B. Macallum: Presidential address, on The energy of muscu- 

 lar contraction; thermodynamic or chemodynamic ? — M. H. Givens 

 and A. H. Hunt er: The excretion of pure catabolites in sundry types 

 of mammalia. — O. Polin and W. Denis: The occurrence of uric acid 

 in blood. — L. J. Henderson and W. W. Palmer: Studies of the ex- 

 cretion of acid. — A. E. Taylor and A. I. Ringer: On the utilization 

 of ammonia nitrogen in the protein metabolism. — W. McK. Mar- 

 riott: The determination of acetone substances in blood and tissues 

 by micro methods. — *jF/. McGuigan and F. C. Becht: The com- 

 pression of the lung by inert gases. — /. Rosenhloom: A new method 

 for drying tissues and fluids. — W. N. Berg: Surface tension in 

 muscle contraction. 



Second session. December 31, g.oo a. m. Joint Session 

 wiTH THE American Physiological Society. Presiding offi- 

 CERS : President A. B. Macallum and President S. J. Meltzer. 



* Read by title. 



