486 THE VITAMINS 



Richardson, A. E, and Green, H. S. 



1916. Nutrition investigations upon cottonseed meal. I. /. Biol. Chetn. 25, 

 307-318. 



1917. Nutrition investigations upon cottonseed meal. II. /. Biol. Chetn. 30, 

 243-258. 



a. Nutrition investigations upon cottonseed meal. III. Cottonseed flour. 

 Nature of its growth-promoting substance and a study in protein minimum. 

 /. Biol. Chetn. 31, 379-388. 

 Richardson, J. E. and Jacobs, E. 



1927. Effect of storage on vitamin C in potatoes. Montana Agr. Expt. Sta. 

 Kept., pp. 78, 79. 



Richardson, J. E., Palmer, L. S. and Kennedy, C. 



1928. The interrelationship of the carriers of vitamins A and B as affecting 

 the growth and development of the tissues and organs of young animals. 

 Atn. J. Physiol. 83, 712-728. 



Richmond, H. D. and England, E. H. 



1922. Note on the sulphuric acid reaction for liver oil. Analyst 47, 431. 

 Riddle, A. R. 



1930. The ultraviolet limit in sunlight. Atn. Rev. Tuberculosis 21, 278-289. 

 Riesenfeld, E. A., Handelman, I. and Rose, A. R. 



1925. Inorganic phosphorus in the blood of the new-born; Its seasonal varia- 

 tion and its relation to rickets. Atn. J. Diseases Children 30, 646-658. 

 Rigobello, G. 



1928. Sull azione vitaminica dell 'olio di oliva irradiato cor raggi ultravioletti. 

 Rev. Sud-Americana Endocrinol. Itmnimol. Quitnioterap. II, 456-466. 



Robb, E. F. 



1920. The influence of dry versus fresh green plant tissue on calcium metab- 

 olism. Science 52, 510. 



Robb, E. F., Medes, G. et al. 



1921. A study of scurvy and its bearing on the preservation of the teeth. 

 /. Dental Research 3, 39-61. 



Roberts, L. R. 



1920. Types and treatment of pellagra. /. Atn. Med. Assocn. 75, 21-25. 

 Robertson, E. C. 



1927. The effect of exposure to the sun on the susceptibility of rachitic rats 

 to infection. Preliminary note. Can. Med. Assocn. J. 17, 1033-1035. 



1929. A study of the effect of various agents, chiefliy sunlight, upon the 

 susceptibility of rachitic rats to infection. Am. J. Hyg. 9, 75-96. 



Robertson, T. B. and Ray, L. A. 



1920. Experimental studies on growth. XV. On the growth of relatively 

 long-lived as compared with that of relatively short-lived animals. /. Biol. 

 Chetn. 42, 71-107. 



a. Experimental studies on growth. XVI. The influence of brain tissue 

 freed from cholesterol upon the growth of the white mouse. /. Biol. Chetn. 

 44, 439-453. 

 Robison, R. 



1919. The antiscorbutic properties of concentrated fruit juices. /. Roy. Artny 

 Med. Corps 32, 48-56. 



