Analyfis of the Air, 169 



Experiment LIII. 



Half a cubicle inch of Oyfierjhell, or 266 

 grains diftilkd in the iron retort, generated 

 162 cubick inches, or 46 grains, which is a 

 little more than i part of the weight of the 

 (hell. 



Experiment LIV. 



Two grains of Thofphorus eafily melted 

 at fome diftance from the fire, flamed and 

 filled the retort with white fumes, it ab- 

 forbed three cubick inches of Air. A like 

 quantity of Thofphoms, fired in a large re- 

 ceiver (Fig. 35.) expanded into a fpace equal 

 to fixty cubick inches, and abforbed 28 cu- 

 bick inches of Air : When 3 grains of Thof- 

 phorus were weighed, foon afrer it was 

 burnt, it had loft half a grain of its weight ; 

 but when two grains of Thofphorus was 

 weighed, fome hours after it was burnt, 

 having run more^r deliquium by abforbing 

 the moifture of the Air, it h^d increafed a 

 grain in weight* 



Expe- 



