THE JOURNAL 
OF 
, BIOLOGICAL CHEMISTRY 
FOUNDED BY CHRISTIAN A. HERTER AND SUSTAINED IN PART BY THE CHRISTIAN A. HERTER 
MEMORIAL FUND 
EDITED BY 
H. D. DAKIN, New York, N. Y. A. N. RICHARDS, Philadelphia, Pa. 
E. K. DUNHAM, New York, N. Y. DONALD D. VAN SLYKE, New York, N.Y. 
LAFAYETTE B. MENDEL, NewHaven,Conn. CLARENCE J. WEST, New York, N. Y. 
WITH THE COLLABORATION OF 
J. J. ABEL, Baltimore, Md. P. A. LEVENE, New York, Wee 
STANLEY R. BENEDICT, New York, N. Y. JACQUES LOEB, New York, N.Y. 
R. H. CHITTENDEN, New Haven, Conn. A. S. LOEVENHART, Madison, Wis. 
OTTO FOLIN, Boston, Mass. GRAHAM LUSK, New York, N. Y. 
WILLIAM J. GIES, New York, N. Y. E. V. McCOLLUM, Baltimore, Md. 
L. J. HENDERSON, Cambridge, Mass. A. B. MACALLUM, Toronto, Canada. 
REID HUNT, Boston, Mass. J. J. R. MACLEOD, Cleveland, Ohio. 
W. A. JACOBS, New York, N. Y. JOHN A. MANDEL, New York, N. Y. 
WALTER JONES, Baltimore, Md. A. P. MATHEWS, Chicago, Ill. 
ANDREW HUNTER, Toronto, Canada. F. G. NOVY, Ann Arbor, Mich. 
THOMAS B. OSBORNE, New Haven, Conn. 
T. BRAILSFORD ROBERTSON, Berkeley, Cal. ' 
P, A. SHAFFER, St. Louis, Mo. 
A. E. TAYLOR, Philadelphia, Pa. 
F. P. UNDERHILL, New Haven, Conn. 
Vv. C. VAUGHAN, Ann Arbor, Mich. 
ALFRED J. WAKEMAN, New Haven, Conn. 
VOLUME XxXxX\V 
BALTIMORE 
1918 
