1 54 MESSES. J. N. LANGLEY AND H. M. FLETCHER ON THE SECRETION OF SALIVA. 
a part of the increase in the percentage of salts we attribute to a decrease of the 
blood-flow through the gland. 
Saliva produced by stimulating the chorda tympani or by injecting pilocarpin, after 
a small dose of atropin has been given, contains a low percentage of organic substance 
and of salts. 
We, like Werther, find that sub-lingual saliva has a considerably higher percen¬ 
tage of salts than sub-maxillary saliva. 
If lithium citrate, potassium iodide, potassium ferrocyanide, and pilocarpin are 
injected into the blood, lithium can be detected in the first drop of saliva secreted, 
iodine after the first six drops; potassium ferrocyanide cannot be detected at any 
stage of secretion. 
