273. J 
the quantity of the dephlogifticated Qe 
air obtained from them. the ato 
122. I placed in a_ gallon jartoyed. 
filled with water fome old or full- 
grown leaves of a vine, and ex- 
pofed it to the fun from nine in 
the morning till two in the after- 
noon, when a great quantity of very 
pure dephlogifticated air was ob- 
tained, whofe teft was 1.95; 1.85; 
Ba SR eo) 3-2 30 547 
oe #0 “Fea quantity o ¢ 
young "Teaes ‘of the fame vine, , and: 
expofed them to the fun during the. ° 
fame time. I obtained a good quan- 
tity. of fine dephlogifticated air, but 
lefs, and of an inferior quality, 
than that. obtained. from the ‘old 
leaves. Its teft gave 1.97; 1.8733 
1.78 ; 4.68 ; 2.33 3 3.30, as 470. 
ae ay 
T  $EC 
