174 



STUDIES ON FERMENTATION. 



wort, after it hud been exhausted by four successive growths 

 in sweetened water. We here see the large ferment-form 

 which appears at the commencement of fermentation, in acid 

 fruits, such as cherries and gooseberries (Plate IX.), associated 

 with smaller forms, which follow it and emanate from it, in 

 proportion as the process of budding is repeated. The field 

 was covered with this minute form, and we had to search 

 about considerably before we could find any of the large cells 

 and the long, branching, jointed filaments which we have 

 sketched. The reason of this was, that these large, extended 





0. ^.^^Q -% 



Fig. 34. 



filaments only appear at the beginning, when there is still 

 an abundance of air, giving place, after repeated budding, to 

 minute cells or short filaments, the ever-increasing number of 

 which soon hides the others from sight. 



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Fig. 35. 

 Fig. 35 represents saccharomyces pastoriamis again, as it 

 appears after having been exhausted by two years preserva- 



