THE JOURNAL 



OF 



GENERAL PHYSIOLOGY 



EDITORS 



JACQUES LOEB W. J. V. OSTERHOUT 



VOLUME IV, NO. 5 MAY 20, 1922 



PUBLISHED BIMONTHLY 

 at mount royal and guilford avenues, baltimore, md. 

 By The Rockefeller Institute for Medical research 



CoPYKiGHT, 1922, BY The Rockepellek Instttutb foe Medical Reseakch 



Entered a* leoond-clau matter November 25, 1918, at the Po«t Office at Baltimore, Md., under the Act of March 3, 1879. 



Made in the United States of America 



