198 COLDS, &c. 



pallage to the blood veffels ; and, intermixing 

 v/ith the mafs, produce different degrees of 

 difeafe, ading differently upon diiferent fub- 

 jedls; the injury fuftained being in fome ref- 

 ped:s regulated by the degree of heat or per- 

 fpiration the horfe was in at the time of being 

 expofed to the original caufe. This circum- 

 ftance, once collecfted, upon the foundation of 

 fuch inquiries, fome idea may be formed of its 

 probable duration and feverity. The effects of 

 cold are not only foon difcovered v/here there 

 is .a conflant attention and care, but an obfer- 

 vation may be veiy early made to what part it 

 more immediately directs its attack. For in- 

 ilance, if the nervous fyflem is the mofl irrita- 

 ble, you fpeedily perceive it in the eyes; if 

 the glandular, upon the neck, throat, under 

 the EARS, or in the head ; if more particu- 

 larly upon the blood (in which both the veffels 

 and their contents are concerned), the whole 

 fyflem of circulation being affeded, you foon 

 difcover its feat to be taken upon the lungs ; 

 and will perceive it difplayed more or lefs in a 

 COUGH, or difhculty of breathing, according 

 to the feverity of attack, from the proportion of 

 perfpirable matter repelled (become morbid), 

 and compulhvely abforbed into the circulation. 



So 



