| 
T. 8S. Hunt on the Theory of Chemical Changes, 233 
Ore, 12H:O2, and hydrogen being unity, its equivalent is at 
least 474-6, which with a specific gravity of 1-75, gives a volume 
of about 270. Again grape sugar is not less than C2:H21O24, 
‘volved in fusion and solution, have been led to conclude ; first, 
that crystallized salts are polymeric of these same salts in solu- 
H0n, i.e, are represented by formulas which are multiples of 
those deduced from analysis; secondly, that double salts, and 
“4, Comptes Rendus, xxii, 823-1140, and xxiii, 199-411; cited in Liebig and Kopp's 
Report for 1847-48, vol. i, p. 40. 
