[ *9° 5 



^ an " f expofed to the fun during fix hours £ 

 tb r C sdef a g reat quantity of very fine dephlo- 

 troyed. gifticated air was obtained^ in which 

 a flame became very brilliant ; it 

 gave, by Abbe Fontana's teft, 2.02; 

 504 1.92; 1.89J; 185; 2.01; 296. 

 .One meafure of it with two of ni- 

 trous air occupied 0.90 ; with three 



345 t^S* 



8. Two little plants of iteucriupi 



Mctrum were expofed in the fame 

 manner, during four hours, to the 

 fun-fhine ; they yielded a great 

 quantity of dephlogirticated air of a 

 fine quality ; it gave, by Abbe Fon- 

 tana's teft, 1. 81; 1.59; 1.37; 1.34; 



4 66 2.34. 



One meafure of it with two of ni-» 

 trous air occupied 0.60 ; with three 



344 i-59 ; with four 2.56. 



9. Some leaves of tobacco were 

 in the fame manner expofed to the 



fun 



