48 



Antoinette Pirie 



lOO 



.!? 

 'vi 



8 8o 



§ 60 

 '«» 



«v 40 

 o 



c 



i^ 20 



Q. 



Duration of Exposure 

 Percentage Residual Glycolysis after 20 minutes. 



• p radiation at 250 E.S.U./c.c./min. 

 o X radiation at 250 E.S. U. /c.c./min. 



Fig. 1. Equivalence of j3-rays and X-rays in depressing anaerobic glycolysis 



of rat retina. 



manometric readings that lie behind them then it seems dif- 

 ficult to place much confidence in the small change found after 

 the lowest dose of radiation in the first 10 minutes of experi- 

 ment. But this figure does not stand by itself. It forms part 

 of a series of results all of which show that radiation inhibits 

 anaerobic glycolysis when this is measured as soon as possible 

 after radiation ceases. Table V gives some results from an 



Table V 



Respiration and Glycolysis of Tissue After Irradiation at Low or 



Body Temperature 



