220 YAI3E ; NOTE ON THE YEAST. 



Percentage of Sugar still Remarks, 



alcohol. present. 



o 0.024 Yeast multiplied very much. 



4 0.098 



8 1.649 



12 5-459 



16 S.636 Multiplied but little. 



20 9- 2 54 Multiplied very little. 



24 9-45° Any multiplication hardly observable. 



We see, therefore, that the yeast was still very active in 

 presence of 12 % of alcohol, and even when there was 16 % some 

 fermentative activity was observed. 



A large increase of mineral salts in the solution seems 

 also not to interfere, as is shown by the following results, obtained 

 with Pasteur solution to which increased quantities of sodium 

 chloride had been added. 



Percentage of Percentage of sugar not Relative fermentative 



sod. chlor. 



fermented after 2 weeks. 



power. 



.O 



O.0826 



99.060 



•OO5 



O.O/I I 



99.O77 



.050 



0-0557 



99.366 



.1 







•5 



O.063I 



99.281 



1.0 



O.0655 



99-255 



2.0 



O.O74I 



99- T 57 



4.0 



0.0753 



99.132 



6.0 



O.I087 



98.764 



10. 0 



4.3982 



48.868 



12.0 



7-5393 



14.287 



14.0 



8.0580 



8.391 



18.0 



8.6360 



1. 819 



22.0 



8.7660 



0 



