214 



CORTEX 



240 



7?rne /n Daj/s 



Fig. 



12. The Effect of Adrenal Cortical and Pituitary Extracts on 

 Growth 

 Adrenal cortical and anterior pituitary growth hormone were administered 

 to female rats after the following experimental procedures: Curve 1, normal 

 unoperated control; 2, ligation of the adrenal pedicles; 3, incomplete adrenal- 

 ectomy; 4, hypophysectomy. The animals were given no treatment during 

 the twenty-day periods indicated on the abscissae as to 20, 40 to 60, 80 to 100, 

 120 to 140, and 160 to 180 days. Each animal received 3 rat units of the adrenal 

 cortical hormone daily during the periods of 20 to 40, and 100 to 120 days. 

 They received 1 cc. of anterior pituitary growth hormone extract daily during 

 the periods of 60 to 80 and 140 to 160 days. (Reproduced through the courtesy 

 of the American Journal of Physiology. 2 ™) 



