[ 273 ] 

 the quantity of the dephlogiflicated^ an - { 

 air obtained from them. thet ; v r ° 



airsdel- 



122. I placed in. a gallon jar tro F d - 

 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 w r as ob- 

 tained, whofe teft was 1.95; 1.85; 

 1.72; 1.60; 1. 61; 2.53. 547 



123. I placed in another jar of 

 the fame fize a fimilar quantity of 

 young leaves 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; 1.87^; 

 1.78; 1.68 ; 2.33 ; 3.30. 470 



T SEC- 



