GLYCOGEJST. 373 



In fact, the whole controversy seems idle, for the real questions 

 are, not whether the glycogen is distributed to the* tissues as sugar 

 or not, but is the glycogen distributed to the tissues as a general 

 carbohydrate nutritive, or is it to be regarded as a step in the 

 manufacture of some other material by the liver cells; in other 

 words, is the glycogen of the liver a store of special animal carbo- 

 hydrate to be kept till called for, or is it a stage in the formation 

 of fat ? 



