FUNCTION 



these, together with the " L. casei factor ", prevented the development 

 of a macrocytic hypochromic anaemia in chicks, ^-pyracin being slightly 

 more effective than a-pyracin.^® A deficiency of ^-pyracin alone re- 

 sulted in the appearance of a normocytic, hypochromic anaemia. 



References to Section 15 



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19. D. E. Green, L. F. Leloir and V. Nocito, ibid., 1945, 161, 559. 



20. M. G. Kritzmann and O. Samarina, Nature, 1946, 158, 104. 



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176, 629. 



24. S. R. Ames, P. S. Sarma and C. A. Elvehjem, ibid., 1947, 167, 135. 



22 337 



