DIGESTION AND THE DIGESTIVE AGENTS. 351 



the process of digestion, then, we have these resulting com- 

 pounds: First, peptones; second, gelatine; third, glucose; 

 fourth, soaps and emulsified fats. We have now to con- 

 sider in what manner and by what routes these final pro- 

 ducts of digestion reach the tissues of the body. 



