. + 3x 3 
“ have reprefented the naked fad? 
* asl obferved them; and, having 
“ no. great attachment to any par- 
* ticular bypotbe/is, 1 am very will- 
“ing that my reader fhould draw 
*‘ his own conclufions for himfelf.” 
: Dr. Prieflley, having obferved that 
- bubbles of. air Teed: to iffue {pon- 
_taneoufly. from. the {talks and roots 
-of feveral plants kept in the water, 
-fufpected immediately, that perhaps 
_ this air, if found. better. than com- 
-amon air, had been percolated through 
one plants and aE by leaving 
coe a * the: plant’ “as. ats 
no “With this view he 
ee many _ phials containing 
-fprigs of mint in water; laying 
‘them in fuch a manner, as that 
~ any air, which might be difc har ged 
_ from the roots, would, be. retained 
_in the phials, the bottoms being 
‘. —— ; a little & 
2 ee 
eet Seas pees ta es, 
