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in number, cold, heat, and moifture\ to which may 

 be added, a combination of the laft of thefe with 

 either of the former. 



Expofure to a great degree of cold may produce 

 inflammatory diforders of different forts, but prin- 

 cipally, though not altogether, of the topical kind. 

 Thus the inflammatory fore throat, rheumatic pains 

 in the teeth and face, inflammations of the eyes, 

 and coughs, with pain of the bread, attended with 

 fever, are all complaints liable to be produced by 

 cold air, either externally applied, or drawn in by 

 the breath. To thefe may be added, the rheu- 

 matifm, both of the acute and chronic kind, which, 

 though fometimes a local diforder, is often general, 

 and may be frequently traced to this cauie. 



Cold, likewife, when great, and long continued, 

 is apt to produce diforders of an oppofite nature to 

 thufe juft mentioned. Paralytic affections are fre- 

 quently caufed by it, efpecially in the lower extre- 

 mities, which are generally the moft expofed to its 

 influence. 



Heat'is another fource of difeafe to the hufband- 

 man, who often experiences its bad effects in time 

 of harveft. Inflammatory fevers are often the con- 

 fequence of heat and labour, and fometimes fuch 



as 



