ASSIMILATION OF CARBnX 



45 



Fig. 23. — Saccharomyces cerevisice I. Film of an old culture. (After E. Hansen.) 



EM 



Fig. 24. — Saccharomyces pastorianus I. Fig. 25. — Saccharomyces pastorianus 



Ascospores. (After E. Hansen.) III. Young cells of the sediment. (After 



E. Hansen.) 



