end attractive Powers of various faline Subfiances . 
Gr. 
Weight of the box in air - 607,65 
Its lofs of weight in water - 73,75 ' 
Weight of the box and lime in air *043,5 
W eigh t of the li me ftngly in air — 43 5,85; 
Lofs of weight of the box and lime in- water. 256,5* 
Lofs of weight of the lime fingly - • 182,3 
Hence, dividing the abfolute weight of the lime by its lofs 
in water, its fpecific gravity was found to be 2,3908.. 
From thefe data I deduced the fpecific gravity of fixed .air in 
its fixed fiate ; for 100 gr. of marble coniift of, 55,92 of earthy 
32,42 of fixed air, and 11,66 of water ; and the fpecific gra- 
vity of the marble is 2,7x 7. Now, the fpecific gravity of the 
fixed air, in its fixed ftate, is as its abfolute weight divided by 
its lofs of weight in water; and its lofs of weight in water is 
as the lofs of 100 gr. of marble tninus the Ioffes of , the pure 
calcareous earth and of the w r ater. 
Lofs of ioq gr. of marble = — 
2,717 
Lofs of 55,92 gr. calcareous earth 
Lofs of 1 .1,66 gr, water , = 
3 ' 5>°5 
- 36,8 gn 
55,92 
= 2 3 ’3 9 r- 
11,6,6. 
Then the lofs of the fixed air 36,8 - 35,05 ^ 1,75 ; conse- 
quently, its fpecific gravity is —18,52; by which it appears 
to be the heavieft of all acids, or even of all bodies yet known, 
gold and platina excepted. 
OF 
