SWEAT. 1 1 1 



Baumgartner, Elements of Physiology and Therapeutics, 

 p. 486.) 



Many of these statements, regarding the changes undergone 

 by the sweat in disease, are fully confirmed; some must, however, 

 still be regarded as doubtful. 



Sweat of animals. 



Anselmino has analysed the sweat of the horse, the only 

 animal of whose sweat we have any accurate knowledge. He 

 used for his analysis the scaly matter that falls from horses 

 during the process of currying, in the form of a white powder, 

 and consisting of dried sweat mixed with a considerable amount 

 of dirt and epithelium. It contained, 1st, a substance with 

 an acid reaction, soluble in anhydrous alcohol, alcohol- extract, 

 together with an alkaline lactate or acetate ; 2d, an extract-like 

 matter, soluble in alcohol of '833 and possessing an odour like 

 that of the horse, together with chloride of sodium ; 3d, an 

 extractive matter soluble in, and communicating a brown colour 

 to water, and precipitable by infusion of galls, together with 

 chloride of sodium and sulphates. The portion still undissolved 

 evidently consisted of epithelium. Anselmino regarded it as 

 coagulated albumen ; doubtless it was in it that the phosphate 

 of lime and magnesia occurred, which were recognised in the 

 ash of the sweat. The ash consisted of sulphates of potash and 

 soda, chlorides of sodium and potassium, a large proportion of 

 the phosphates of lime and magnesia, with traces of iron, but 

 no alkaline carbonates or phosphates. Anselmino seems to 

 have overlooked the ammonia-salts, for it is only by the presence 

 of hydrochlorate of ammonia that we can explain how it is 

 that the ash contains no alkaline carbonate, while the alcohol- 

 extract contains either lactate or acetate of potash. The pre- 

 sence of acetic acid was established by a separate experiment. 

 Fourcroy and Vauquelin sometimes found small quantities of 

 urea in horses' sweat, but Anselmino could never detect it. 



