[ *°3 ] 



folved to repeat the experiment a- 

 gain, with all poflible attention ; I 

 had frill half a pint left of the in- 

 flammable air, which had been du- 

 ring fix days upon the perficaria urens 

 without being much mended. See 

 exp. ii2. I put a frefh plant of 

 muftard in ajar filled with water, and 

 let up this inflammable air in the jar, 

 fo that the plant was in contact with 

 the air. I placed it in the garden 

 on a Saturday at twelve o'clock. I 

 tried this air the next day between 

 one and two in the afternoon, and 

 found it by the nitrous teft fo much 

 mended, that it appeared better ffian 

 common air, and yet it exploded 

 with a loud report by the approach 

 of a candle. I replaced the jar again 

 in the garden, and put the fame air 

 again to the nitrons teft on the Mon- 

 day folio wing j when it appeared to 

 H a be 



