THE METABOLISM OF PROTEIN 633 



certain aromatic alcohols are given, when it is used for the purpose of 

 detoxicating them. The resulting glycuronates have reducing powers 

 and may be confused with glucose when present in large amount. Gly- 

 curonates may be distinguished from glucose in the urine (1) because 

 they are levorotatory, and (2) because they do not ferment. The free 

 acid itself, however, is dextrorotatory. 



