288 Analyfis of the Atr, 

 nium, " he fuppofing fire to be a parti- 

 << cular fluid matter, which maintains its 

 " own efience, and figure, remaining always 

 " fire, tho* not always burning. Religious 

 <e Thilofopher, p. 310." 



To the fame caufe alfo, exclufive of the 

 air, he attributes the vaft expanfion of a 

 mixture of compound Aqua fort is and oil of 

 Carraways, whereas by Exper. 62. there is 

 a great quantity of air in all oils. And by 

 pouring fome compound Aquafortis on oil 

 of Cloves, the mixture expanded into a 

 fpace equal to 720 times the bulk of the 

 oil, that part of the expanfion, which was 

 owing to the watry part of the oilzn&fp- 

 rit was foon contraded 5 whereas the other 

 part of the expanfion, which was owing to 

 the elaftick air of the oil y was not all con- 

 traded, till the next day, by which time 

 the fulphureous fumes had reforbed it. 



The learned Boerhaave would have it, 

 that putrefadion is the effed of inherent 

 fire. He fays, " that vegetables alone are 

 " the fubjed of fermentation, but both 

 " vegetables and animals of putrefadion 5 

 " which operations he attributes to very 

 «« different caufes, the immediate caufe of 



fermen- 



