THE JOURNAL 



OF 



GENERAL PHYSIOLOGY 



EDITORS 

 JACQUES LOEB W. J. V. OSTERHOUT 



VOLUME IV, NO. 2 NOVEMBER 20, 1921 



PUBLISHED BIMONTHLY 



AT MOUNT ROYAL AND GUILFORD AVENUES, BALTIMORE, MD. 



By The Rockefeller Institute for Medical Research 



CopYxicHT, 1921, BY The Rockefeller Institute for Medical Research 



Entered u lecond^lass matter November 25. 19 18. at the Post Office at Baltimore. Md.. under the Act of March 3. 1879. 



