Osmotic *Eq u ilih i a tion. 247 



5 per cent, dextrose solution salivated. 



(1) - - 0.536 



(2) - - 0.532 



(3) - - 0.534 



Cane sugar solution, 20 grms. in 150 c.c. (13.3 per cent,), 

 100 c.c. treated in similar manner as dextrose solution above. 7 

 c.c. saliva were added by this process to the 100 c.c. sugar 

 solution, and there ^Yas an after secretion for several minutes. 



Cane sugar solution (13.3 per cent.). 



0.868 

 Cane sugar solution salivated. — 



(1) - - 0.788 



(2) - - 0.792 



strained juice (pressed by hand). 



(1) - - 0.990 



(2) - - 0.992 



30 c.c. juice evaporated to dryness and calcined, and ash 

 taken up in 30 c.c. distilled water. There was a small undis- 

 solved residue, composed chiefly of calcium carbonate. 



Ash extract. — 



(1) - - 0.134 



(2) - - 0.132 

 Pineapple juice. — From fresh Queensland pineapple. 



(1) - - 1.462 



(2) - - 1.464 



(3) - - 1.460 



