1,6 

 1,6 

 1,4 

 1.2 

 1,0 

 0,8 

 0,6 

 OA 

 0,2 



Fig. 9. Urinary sodium/potassium ratio of adrenalectomized male 

 rats of different age groups treated with Cortisol (5 mg./kg.) 



Ordinate : Difference between sodium/potassium ratio of experi- 

 mental animals and controls. 



Other figures as for Fig. 1. 



% 

 160 



140 



120 



100 



60 



60 



jiO 



ZO 



+ 

 



ZO 



40 



60 



60 



Fig. 10. Urinary excretion of adrenalectomized female rats of dif- 

 ferent age groups treated with Cortisol (5 mg./kg.). 



Figures as for Fig. 1. 



