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is found lefs. The quantity of air 

 thus abforbed by plants may vary 

 from numberlefs circumrtances, as 

 well as from the particular nature 

 of the plant. I have no time to 

 fearch in my notes for all the parti- 

 cularities I have obferved upon this 

 fubjecl. I can fay in general from 

 remembrance, that fome water- 

 plants were very willing to abforb 

 a good deal of air, principally when 

 they were placed with roots and all 

 in the air ; and that they readily 

 abforbed air fouled by breathing. 



One of thofe plants had alfo ab- 

 forbed a great deal of dephlogifti- 

 cated air, fo that in one night 

 it had abforbed half the quan- 

 tity I had put with it, which a- 

 rnounted to 4 ounce meafures, if I 

 rightly remember. 



This 



