[ 2^6 ] 



ed : after two days ftanding in the 

 garden, a fmall quantity of air was 

 obtained, in which a flame was im- 

 mediately extinguiihed. 



67. Forty-five flowers of Mari- 

 gold were put in a quart jar without 

 water, and kept the whole night in 

 a room, the jar being inverted; next 

 morning I found the air fo much 

 fouled by them that a candle would 

 not burn in it. One meafure of it 

 with one of nitrous air occupied 



68. I placed the fame flowers 

 with the remaining air in the fun- 

 mine from nine till twelve, when I 

 found the air Hill more infected. 

 One meafure of it with one of ni- 

 trous air occupied 1.54. 



6 9 . A few flowers of Honey-f tickles, 

 Cctprifoliurn, were placed under a 

 jar of about a pint ; when they 



had 



