THE JOURNAL 



OF 



GENERAL PHYSIOLOGY 



EDITORS 

 JACQUES LOEB W. J. V. OSTERHOUT 



VOLUME III, NO. 5 MAY 20, 1921 



\ 



PUBLISHED BIMONTHLY 

 at mount royal and guilford avenues, baltimore, md. 

 By The Rockefeller institute for Medical research 



Copyright, 1921, by The Rockefeller Institute fob Medical Research 



Entered as second-class matter November 25, 1918, at the Post Office at Baltimore, Md., under the Act of March 3, 1*79. 



