THE SUPRARENAL CAPSULES OR ADRENALS 



429 



the suprarenal capsules within the last few years by the researches of Schafer 

 and Oliver, Zyboulski, Abel, and others. Brown-Sequard, it is true, showed 

 by experiment as early as 1856 that removal of the suprarenals is followed 

 by the death of the animal, but his experiments were repeated by others who 



^L A 



FIG. 312. Vertical Section of Adrenal. A, Capsule; B, cortex; C, medulla; a, glomerular 

 zone; b, f ascicular zone ; c, reticular zone; v, vein in medulla. (Merkel-Henle.) 



did not obtain the same results; and it was concluded that the suprarenal 

 capsules had no function, or at least that their function was not known. 

 Death was preceded in the case of Brown-Sequard's animals by symptoms 

 somewhat analogous to those of the disease of man known as Addison's 

 disease. The failures to produce symptoms after attempted removal of the 

 glands have probably resulted from incomplete removal or the presence of 



