COLDS, &c. 199 



So foon as the horfe is in this ftate a fympto- 

 matic fever attends, which is to be underftood 

 no more than a degree of febrile heat, or irri- 

 tability dependant on the original caufe, which 

 gradually ceafes as the primary difeafe is found 

 to decline. 



The blood in all thefe inftances becomes 

 languid and enfeebled by its increafe and in- 

 cumbrance, whilft its velocity is preternatu- 

 rally compelled in the ftridlure of the veffels, 

 upon their over-accumulated contents, which 

 palpably conftitute the obftru6lion and pro- 

 duce the fever. Having traced the very prin- 

 ciple of colds to their original caufe, and 

 pointed out their different effeds upon the 

 eyesy ghmds, lungs^ and circulation, I (hall pro- 

 ceed firft to that kind of cold fixed on the 

 lungs, diftinguiflied by COUGH, and its con- 

 fequences, enlarging upon the other two, when 

 we come to treat on their feparate clafles, 

 under the diforders of the eyes and ftrangles, 

 or tumours upon the glands. I fliall therefore 

 take this complaint in its firft ftage, when it 

 is early difcovered by an induftrious fervant or 

 attentive mafter, and generally fubmits to 

 O 4. immediate 



