72' ANIMALCULA OF INFUSIONS. L 



From what has been ftiid may be judged the va- 

 riety of heat and cold that man can fufFer, begin- 

 ning with heat equalling or furpaffing blood heat, 

 and defcending to the horrors of cold fo far ex- 

 ceeding freezing, which fhews that man is not ne- 

 celTitated by nature to inhabit certain determinate 

 parts of the globe, but to live, multiply, and exer- 

 cife his fovereignty over all, without finding an ob- 

 llacle in climate. It is otherwife with quadrupeds. 

 They are difperfed over the earth ; fo that fome 

 are limited to warm climates, fome to temperate, 

 and fome to cold ; nor has any fpecies yet been 

 found adapted to live in all indifferently. The 

 lion, elephant, tiger, leopard, and panther, inha- 

 bit only the warmefl regions ; when tranfported 

 to the temperate, they become incapable of pro- 

 pagating, and foon perifh in the cold. Although 

 the domeflic animals, fo ufeful to us, are not in- 

 jured by warmer climates, they cannot live in 

 colder. Such are the horfe, ox, and fheep. The 

 elk, rein-deer, and ermine, inhabitants of the 

 north, are never found in fouthern countries ; and 

 fo far from being able to exift there, they do 

 not live in temperate climates. At leafl this has 



been 



ter In fuch inhofpitable regions. Air and excrcife always 

 preferved health, while inaftivity uniformly fubjefled them 

 to difeafe. However the death of a great many feems' f"- 

 have enfued from improper food. — ^'J\- 



