{ xxix . 
that refpiration has. He allows, 
however, ‘that plants do not grow 
-fo ‘well in dephlogifticated:> as in 
‘common dir. 
“At the €nd of Seétion: XXXII, in 
“whith ‘he ‘treats of the Spontaneous 
‘emiffion of dephlogifiicated air from 
water in certain circumfiances, he 
{peaks thus: ‘It will probably: be 
‘‘ imagined, that the refult of the 
* experiments recited inthis Sec- 
tion throws fome uncertainty on : 
recited in this aa de 
fd which I have coh-. 
- & ie tefult of thofe‘reci 
“ce 4 é €e 
* Faced, that air is meliorated by 
“ the vegetation of plants, efpecially 
 & as the water, by which they were 
‘¢ confined, was expofed to the open 
“air; and the fun, in a garden. es 
To this I can only fay, thatI was 
“ not' then aware of the effect of — 
5 thefe circumiftances, and that-I . 
“ have 
