494 
Notes dn Mineral Waters « 
drous sulphat of lime. Pure carbonat of lime containing 44f- per 
cent, of carbonic acid, 180 grains of it will yield 236 grains of an- 
hydrous sulphat. 
One hundred parts of carbonat of lim6, yield 154 parts of sul- 
phat of lime, compact, not crystallized, and in the state in which 
gypsum or plaister stone is commonly found. 
One hundred parts cf carbonat of lime yield 160 parts of well 
crystallized sulphat, per Klaproth. 
Common hydrous (unboiled) gypsum contains 33,15 lime 
44, 85 acid, 22 water. 
Sulphat of potass contains 46,62 acid, 
soda 
ammonia 
magnesia 
alumina 
23,52 acid, 
55 acid, 
33,05 acid, 
30,52 acid, 
58 wt» 
baryta 
lead 
Muriat of potass 
soda 
ammonia 
lime 
baryta 
magnesia 
silver 
S3 acid, 
26.5 acid, 
66,66 acid, 
46 acid, 
61,65 acid, 
49,23 acid, 
22,93 acid, 
56 acid, 
19.05 acid, 
See for the muriats (anhydrous) Dr. Marcet’s paper on the 
waters of the Dead Sea. 20 Nich. Journ. 28. 
51,38 alkali, 
1 8,48 alkali, 58 water. 
1 4 ammonia, 3 1 water.. 
16,05 magm 50 water* 
5 alkali, 
5 alumina, 
67 baryta. 
69 lead, 5 oxygen. 
33.34 alkali. 
54 alkali. 
38.35 alkali. 
50,77 lime. 
62,47 baryta, 1 4,06 wa*r. 
44 magnesia. 
80,95 oxyd of silver. 
Carbonat of lime 44^ acid, 55^ earth 1 water not noticed z 
baryta 21,7 acid, 78.25 earth i included in the 
magnesia 34 acid, 66 earth ) acid nearly. 
Nitrat of potash 48 62 acid, 51,38 alkali. 
soda 58,6 acid, 41.4 alkali : anhydrous : average of experiments, 
C74.5 acid, 19.8 alkali, 5,7 water : compact nitrat. 
ammonia ^69,5 acid, 18,4 alkali, 12,1 water : prismatic nitrat. 
lime 57,44acid, 32, earth, 10,56 water : (Kirwan). 
baryta 40,7 acid & water. 59,3 earth. (Thompson.) 
aram. &. mag 78, nitrat magnesia, 22, nitrat of ammonia (Fourcroy.) 
Oxalat lime common 59.2 acid, 35,05 earth, 5,03 water, (Thompson.) 
anhydrous 62.5 acid, 37,5 earth. (Thompson, 21 Nich. Jour. 328.) 
Experimenters on the composition of neutral salts, do not al- 
ways attend with necessary accuracy, to the amount of water in 
the composition, but the preceding table is drawn up on the 
best modern authorities, T. G. 
