16 NUTRITION FACTORS IN YEAST AND BACTERIA 



mine D described by Funk and Dubin 5 or of a similar nature. 



4. There is also present in beef and beef-heart infusions 

 another substance which is necessary for the growth of hemo- 

 lytic bacteria, and this substance is thought to be associated with 

 hemoglobin. 



BIBLIOGRAPHY TO PART I. 



1. Mueller, J. Howard, Proc. Soc. Exp. Biol. Med., 1920, 18, 14. 



2. Funk, C., and Dubin, H. E., Jour. Biol. Chem., 1920, 44, 487. 



3. Davis, D. J., Jour. Infec. Dis., 1921, 29, 171. 



4. Rivers, T. M., and Poole, A. K., Johns Hopkins Hasp. Bull., 1921, 32, 202. 



5. Funk, C., and Dubin, H. E., Jour. Biol. Chem., 1921, 48, 437. 



6. Seidell, A., U. S. Public Health Report, 1921, 36, 665. 



7. Eddy, W. H., Heft, Hattie L., Stevenson, Helen C., and Johnson, Ruth, 



Proc. Soc. Exp. Biol. Med., 1921, 18, 38, Jour. Biol. Chem., 1921, 47, 249. 



