ALCOHOLIC FERMENTS. 



193 



It frequently occurred in HANSEN'S analyses of air in the 

 brewery ; it appears to belong to the species which do not 

 acuse diseases in beer. Ascospore-formation (Fig. 43, 3): 

 At 29 C. no ascospores are developed. 



27-28 the first indications are seen after 34 hours. 



25 



23 



1? 



15 



H-5 



7 



3-4 



25 



27 

 36 

 48 

 77 

 7 

 17 



0'5 no ascospores are developed. 

 Size of the spores 25 JUL. 





FIG. 58. Saccharomyces Pastorianus II. (HANSEN). Film-forms at 153* C. (after 

 Holm's drawing in HANS EN'S Memoir). 



Film-formation : 

 At 34 C. no film-formation occurs. 



26-28 feebly-developed film-specks are 



20-22 



13-15 



6- 7 



3- 5 



2- 3 



seen after - 



(Fig. 53) 



no film-formation occurs. 



N 



7-10 days. 

 8-15 

 10-25 

 1 2 months. 

 5- 6 



