FEBRUARY 1, 1925 
No. 3 
Vol. XXX 
eiT JOURNAL OF 
AGRICULTURAL 
RESEARCH 
CONTENTS 
Page 
Anatomy of the Vegetative Organs of Sugar Cane - - - - - - - 197 
ERNST ARTSCHWAGER 
Regarding the Possible Adaptation of Soy Bean Radicicola to a Specific Host Variety - 243 
ALFRED T. PERKINS 
Sowing and Planting Season for Western Yellow Pine ------ 245 
W. G. WAHLENBERG 
The Quantitative Determination of Xanthophyll by Means of the Spectrophotometer 
and the Colorimeter ------------ - 253 
F. M. SCHERTZ 
Contribution to the Chemistry of Decomposition of Proteins and Amino Acids by 
Various Groups of Microorganisms - -- - - -- -- 2(53 
SELMAN A. WAKSMAN and S. LOMANITZ 
A Biometric Comparison of the Urediniospores of Cronartium ribicola and Cronar- 
:ium occidentale - -- -- -- -- -- -- 283 
REGINALD H. COLLEY 
PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE 
WITH THE COOPERATION OF THE ASSOCIATION 
OF LAND-GRANT COLLEGES 
WASHINGTON, D. C. 
GOVERNMENT PRINTING OFFICE 
1925 
