390 Properties of Fixed Air. [Book V. 



^nalyfis, arc known to con^in. It is from this pro- 

 perty of preventing put:cfa6licn, that fixed air and vege- 

 tables, fugar, and other fubfbnces, v hich abound with 

 that prircipic, are fuppofed to be powerful r-.nr.lies 

 in putrid difrafes. 



Fixable air not only preferves fruit, but m^at alfo, 

 from pttotefa&fGfk, and that for a very coniidcrablc 

 time, and even in the hotteft weather. 



