46 



PHYSIOLOGY OF NUTRITION 



^J&s' 



Fig. 23. — Saccharotnyces cerevisia I. Film of an old culture. {After E. Hansen.) 



Fig. 24. — Saccharotnyces pastorianus I. 

 Ascospores. (After E. Hansen.) 





Fig. 25. — Saccharotnyces pastorianus III. 

 Young cells of the sediment. (After E. 

 Hansen.) 



