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of refpirable air ; it exploded how-* 

 ever with a loud report. 



109. As, in experiment to 6, the 

 two meafures of inrTairvnable air 

 let up in the jar containing the 

 walnut-leaves were fcaree corrected 

 at all in the day time, whereas the 

 other plants had corrected this air 

 in a very great meafure ; I fuf- 

 pedted that the walnut-leaves had 

 furTered from the inflammable air 

 in the night time, and that, perhaps* 

 they had lGft their natural power 

 of correcting this kind of air, or 

 that fome miftake had been com- 

 mitted ; I thought it therefore ad- 

 vifeable to repeat the experiment 

 another day, which I did. Hav- 

 ing let up in a jar filled with 

 pump-water, in which a handful 

 of walnut-leaves were, two mea- 

 fures of inflammable air 3 and left 



the 



