19S COLDS, 



fection of the attack. The most penetrat- 

 ing and acrimonious particles immediately 

 make their passage to the blood vessels ; 

 and, intermixing with the mass, produce dif- 

 ferent degrees of disease, acting differently 

 upon different subjects ; the injury sustain- 

 ed being in some respects regulated by the 

 degree of heat or perspiration the horse was 

 in at the time of being exposed to the ori- 

 ginal cause. This circumstance, once col- 

 lected, upon the foundation of such inqui- 

 ries, some idea may be formed of its pro- 

 bable duration and severity. The effects of 

 cold are not only soon discovered where there 

 is a constant attention and care, but an ob- 

 servation may be very early made to Avhat 

 part it more immediately directs its attack. 

 Tor instance, if the nervous system is the 

 most irritable, you speedily perceive it in the 

 EYES ; if the glandular, upon the neck, 

 THKOAT, under the ears, or in the head ; 

 if more particularly upon the blood (in which 

 both the vessels and their contents are con- 

 cerned), the whole system of circulation 

 being affected, you soon discover its seat to 

 be taken upon the lungs ; and will per- 

 ceive it displayed more or less in aCOUGH^ 



