[ 194 ] 



Quart*- 



t cy of fhine ; the air obtained was remark- 



the tw b 



uolS: abl y fine > I - 8 5^ l - 6 9i 1-54; 

 556 1.38; 1.58; 2.49; 3.44. 



1 8. Leaves of the fame tree ex- 

 pofed to the open air in a very dark 

 and cloudy day, from five in the 

 afternoon till fix, had yielded but a 

 fmall quantity of air, which was 

 worfe than common air, 1.84 ; 



164 2.36; 3.36* 



19. Leaves of the fame tree ex- 

 pofed in the fun from nine in the 

 morning till twelve, 1.89; 1.7 1; 



417 1.52; 1.60; 2.60. 



20. Air from the leaves of a 

 willow-tree treated in the fame way 

 as in experiment 1 , expofed in the 

 fun between twelve and two, 2.00 ; 



457 2.1.2; 2.19; 2.41; 3.43. 



2 1 . Air from the fame tree, ga- 

 thered in a dark, rainy, and windy 



day, 



