208 



EFFECTS ON ALCOHOLIC FERMENTATION 



The above results are shown in figure 56. 



After fermentation had ceased in all three tubes they were allowed 

 to stand for ten days (April 2-1 1), and as the gaseous products given 



01234 



Tiays 



Fig. 56. Effect of the Ravs from Radium and Radio-Tellurium on the Rate of Alcoholic 



Fermentation. 



off during fermentation were dissolved by the yeast mixture in the 

 saccharimeters, readings were" taken every 24 hours of the height of 

 the liquid. The figures are omitted in tabular form, but the plotted 



So 

 P 2 





5 6 



Days 

 Fig. 57. 



10 



11 



curves are given in figure 57. It is seen, consulting these curves, 

 that the rate of absorption of the fermentation-product varied, be ing 

 most rapid in the radium preparation, least rapid in the control, and 

 intermediate following exposure to the radio-tellurium. 



