C *6 7 ] 



of the event in Experiments uo,9^ an : 



x ' tity of 



III, 112, 113, 114, 115. ^S 



It appears alfo that plants have a tr °y ;d - 

 power of changing inflammable air 

 into a kind of air which is not to 

 be known by the ordinary nitrous 

 teft, and which is the only air I 

 know that explodes without the ad- 

 dition of any other air ; fo that it 

 feems to be by itfelf a true fulminat- 

 ing air ; for this inflammable air, 

 after the perficaria plants were 

 changed four times during 1 6 days, 

 gave at laft the following remit, 

 1.81; 1.56; 1.37; 2.27; 3.25. 375 



One meafure of it with one of 

 nitrous air occupied 0.84; with two 

 meafures of nitrous air 0.98 ; with 

 three 2.00 ; and yet it had not loft 

 its explofive quality, though by 

 this diminution of its bulk with 

 nitrous air it indicated to be far bet- 

 6 ter 



