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PROGRESS OF VETERINARY SCIENCE AND ART. 
phosphate of lime, and sometimes even sulphate of lime and 
chloride of calcium. 
In the horse, the soluble part of the ash was chiefly an 
alkaline chloride, and but little sulphate. Soda was the pre- 
dominating alkali, but there was also a little potash. In one 
horse was found much chloride of calcium and magnesium. 
The insoluble portion of the ash contained carbonate and 
phosphate of lime, a little magnesia, oxide of iron, and per- 
haps even a little oxide of manganese. 
Leuret and Lassaigne give it, as the result of their analyses, 
that the gastric juice is composed of 
Water .... 
Lactic Acid 
Hydrochlorate of Ammonia 
Chloride of Sodium 
Animal Matt.er soluble in Water 
Mucus .... 
Phosphate of Lime 
According to Blondlot, 
Water ..... 
{ Acid Phosphate of Lime 
Phosphate of Ammonia 
Chloride of Sodium . 
r Aromatic Principle . 
Organic Matters < Mucus 
L Peculiar Matter 
Beaumont had said something respecting the composition 
of the gastric juice of man. Recently there have been some 
more complete researches on the subject, and three analyses 
by Otto have shown that — 
The gastric juice of man contains an albuminoid substance 
(pepsin) which coagulates at 100° centigrade. 
Butyric and lactic acids, which must be looked upon as 
the results of metamorphoses of the hydro-carbonaceous 
elements of food under the influence of heat. 
The gastric juice of man does not contain free hydrochloric 
acid. 
The acid and the organic material, pepsin, are the active 
principles of the gastric juice, and Bernard’s experiments to 
determine the nature of the acid lead him to believe that it 
is the lactic. lie says, “ In summing up these experiments 
we find that lactic acid and the acid of the gastric juice have 
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