518 APPENDIX. 



ADDITIONS TO VOLUME II. 



PAGE 9. Saliva. Lassaigne has instituted a series of 

 experiments in reference to the animal diastase of Mialhe. 

 The results of these experiments are as follows : 



a. Human saliva, and that of the horse, at the temperature 

 of 103, exert no solvent power on starch, which remains quite 

 unaltered in its physical and chemical properties. 



b. At a higher temperature (158 to 167) maintained for 

 three hours and a half, horse's saliva acts on starch exactly as 

 water does ; that is to say, the granules become tumid and dis- 

 tended, without being changed into either dextrine or glucose. 



c. Human saliva obtained from the mouth has no action on 

 starch at the temperature of the body ; but converts it rapidly 

 into dextrine at a temperature between 158 and 167, and 

 subsequently converts the dextrine into glucose. 



d. During the digestion of raw amylaceous substances, the 

 saliva, being at the temperature of the animal body, cannot 

 exert the influence attributed to it by Mialhe ; it can merely, 

 as most of the older and modern physiologists maintain, con- 

 tribute to moisten the alimentary bolus, and dissolve such of 

 its principles as are soluble in water. 



PAGE 12. Morbid saliva. Scherer has analysed the saliva 

 of a girl aged 15 years, suffering from a scorbutic affection of 

 the mouth. There was copious ptyalism, the saliva amounting 

 to about 40 ounces in twenty-four hours. The secretion was 

 very liquid, fetid, and alkaline. The specific gravity was 1004. 

 In 1000 parts there were contained : 



Water . 988-8 



Solid constituents . . . 11-2 



A caseous-like substance precipitable by "I g . 

 acetic acid . . J 



Fat taken up by ether 

 Extractive matter and ptyalin 

 Carbonate of soda 

 Chloride of sodium . 

 Phosphate of lime 



0-6 

 1-8 

 1-2 

 0-7 

 0-4 



