COMPOSITION OF HUMAN MIXED SALIVA. 261 



Amylolytic power was determined as follows : 5 c.c. of the 

 filtered saliva were diluted with distilled water to 50 c.c. ; 

 10 c.c. of the diluted fluid were then added to 1 gram of pure 

 arrowroot starch made into a paste with 90 c.c. of water, and 

 the mixture kept at 38 C. for half an hour. Amylolysis was 

 then stopped by boiling the fluid, after which the solution, 

 when cool, was made up to 150 c.c. with water and the reduc- 

 ing sugar determined by the Allihn Method, using 25 c.c. of 

 the sugar-containing solution. The results are expressed as 

 milligrams of maltose formed from 1 gram of starch by 1 c.c. 

 of saliva. The data obtained are given below. 



