176 



Jiiii K^ECEK, et al. 



in Fig. 6, which shows the results of micrometric measure- 

 ments of the width of the cortex and the sudanophil layer as 

 obtained from serial sections of the adrenals. Four adrenals 

 from each group were measured. One hundred sections from 

 each gland were used and measurements were taken from 



The size of the cortex 

 of the adrenal section 

 The lower part of the 

 column corresponds to 

 the part of the cortex 

 stainable with Sudan 

 Black or Oil Red 



I I 23 days 



controls cortisone ACTH 



33 days 



The part of cortex 

 stainable with Sudan 

 Black or Oil Red 0, 

 expressed in % of to- 

 tal thickness of the 

 section of the cortex 



^ 



-60 



40 



controls cortisone ACTH 



cortisone 



Fig. 6. See Fig. 5. 



several sites of those sections. DifPerences are largest after 

 cortisone. In 23-day-old animals the sudanophil layer 

 decreases in size while the total width of the cortex remains 

 unchanged. In 33-day-old animals the width of the cortex 

 decreases and thus the relative width of the sudanophil 

 layer is increased. After ACTH and cortisone the proportion 



