t *3S ] 



fure of common air with one of 

 nitrous air occupied i.o8|. 



88. Two dozen of young and 

 fmall French beans were put 

 under an inverted quart jar over-; 

 night in a room without water ; 

 they flood till eleven in the morn- 

 ing and were not covered, fo that 

 they had been a long while expofed 

 tp all the light of tlie room. The 

 air in the jar was found fo remark- 

 ably poifpned, that it even furpaffed 

 in foulnefs the air infected by a 

 plant of Hyofcyamus (fee Exp. 43) ; 

 for one meafure of it with one of 

 nitrous air occupied 1.95. 



89. I was willing to fee the effect 

 of fuch offenfive air upon a living 

 animal. I placed a very lively 

 chicken eight or nine days old in 

 this air ; in the very inftant it en- 

 tered the jar it fhewed iigns of the 



utmoft 



