Amlyfts of the Air. 
i6^ 
Experiment LIIL 
Half a cubick inch of Oyfter felly or 266 
grains diftilled in the iron retort, generated 
162 cubick inches, or 46 grains, which is a 
little more than J part of the weight of the 
Ihcll. 
Experiment LIV. 
Two grains of TPhofphorus 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 ThofphoruSy fired in a large re- 
ceiver ( Fig. 35.) expanded into a fpace equal 
to fixty cubick inches, and abforbed 2 8 cu- 
bick inches of Air : When 3 grains of "Phof 
phorus were weighed, foon after it was 
burnt, it had loft half a grain of its weight ; 
but when two grains of Phofphorus was 
weighed, fome hours after it was burnt, 
having run more per deliquium by abforbing 
the moifture of the Air, it had increafed a 
grain in weight. 
