134 PHYSIOLOGICAL CHEMISTRY. 



pigs, that the amount of mucin in the tissue was increased after 

 extirpating the thyroid gland. 



The Suprarenal Body. Besides proteids, substances of the 

 connective tissue and salts, we have found in the suprarenal 

 body palmitin, lecithin, neurin, and glycero-phosphoric acid, which 

 last gives the poisonous properties of the watery extract of the 

 gland (MABiNO-Zuco and GUARKIERI), and some leucin, which is 

 probably a decomposition product. The statement that benzoic acid, 

 hippuric acid, biliary acids, and taurin occur in this gland requires 

 further confirmation. In the medulla there have been found one 

 or more chromogens which are converted into a red coloring mat- 

 ter by the action of the air, light, warmth, haloid or metallic salts 

 (VULPIAN, KRUKENBEKG). Pyrocatechin also probably occurs 

 therein. Because of the amount of chromogen contained in the 

 suprarenal body, a connection is claimed between the abnormal 

 deposition of pigment in the skin, which is characteristic of ADDI- 

 so^'s disease, and the diseased changes which often occur in the 

 suprarenal body. 



