83 McDonald and McCollum: The bios of Wildiers and the 
cultivation of yeast. Jour. Biol. Chem. 1921 XLVI 525. 
** Nelson, Fulmer and Cessna: The nutritional requirements 
of yeast. III. The synthesis of water-soluble B by 
yeast. Jour. Biol. Chem. 1921 XLVI 77. 
Souza and McCollum: A study of the factors which interfere 
with the use of yeast as a test organism for the anti- 
neuritic substance. Jour. Biol. Chem. 1920 XLIV. 113. 
86 Hopkins, Chick et al: Report on the present state of knowl- 
edge concerning accessory food factors (vitamines). 
Medical Research Committee Special Report No. 38 
1919. 
3t Edgeworth: Experiments with two methods for the study 
_ of vitamin B. Dissertation 1922. 
88 McCarrison: Studies in deficiency diseases. Oxford Uni- 
versity Press. 1921. 
89 Osborne, Wakeman and Ferry: Preparation of protein free 
from water soluble vitamine. Jour. Biol. Chem. 1919 
XXXIX 35, 
49 Osborne and Mendel: Nutritive value of the wheat kernel. 
Jour. Biol. Chem. 1919 XXXVII 572. 
“ Kennedy and Dutcher: Vitamine studies. IX. The influence 
of the diet of the cow upon the quality of the vitamines 
A and B in milk. Jour. Biol. Chem. 1922 L, 339. 
* Hopkins: Note on the vitamine content of milk. Biochem. 
Jour. 1920 XIV 721. 
48 Osborne and Mendel: Milk as a source of water-soluble 
vitamine. Jour. Biol. Chem. 1918 XXXIV 537. 
“4 Osborne: and Mendel: Milk as a source of water-soluble 
vitamine. II. Jour. Biol. Chem. 1920 XLI 515. 
27 
