B. RAJEWSKY 



doses in the independent range have been tried out. At present we can 

 only say that simiUtaneous irradiation of two or more organs shows a clear 

 effect on the survival time, and is therefore in contrast to irradiation of one 

 isolated organ only. Participation of the liver intensifies the effects. 



12 3 9 



12 3 9 



12 3 9 



12 3 



12 3 



12 3 

 Figure 6a. Urinary excretion of corticoids of mice after whole body irradiation. 



12 3 

 days 



1 i 3 ^ 



\ 



1 2 3 14 123 123 12 3 12 3 



days 



Figure 6b. Urinary excretion of 17-kelosteroids after whole body irradiation 



The influence of irradiation on some hormonal systems within the 3-5-day dose 

 range was examined by analysing the urinary excretion of the corticoids and 

 the excretion of 17-ketosteroids of the irradiated animals''. With doses less 

 than those necessary for the 3 • 5-day effect an increase of excretion appears 

 in both cases. At the beginning of the independent range this increase 

 stops relatively abruptly and is followed by a decrease of the excretion. 



89 



