transactions of the sections. 
43 
Potash... 
29*51 
Sulphuric acid... 
50*10 
Methylic aether... 
14*39 
Water of crystallization. 
6*00 
• 
100*00 
which agrees with the formula : 
• 2S+K+(2C+8H+0) + H' 
The sulpho-methylate of baryta crystallizes 
in plates. The mean 
of two analyses gave 
Baryta.*. 
38*50 
Sulphuric acid. 
40*21 
Methylic aether. 
11*49 
Water of crystallization. 
9*80 
100*00 
This salt was analysed by Dumas. His result: 
Baryta... 
38*6 
Sulphuric acid... *.. 
40*4 
Methylic aether... 
11*1 
Water of crystallization. 
9*9 
100*0 
Both analyses indicate the same formula : 
2 S + Ba + (2C + 3H+0) + 2H 
The sulpho-methylate of lime crystallizes 
in octohedrons, which 
,are anhydrous. They deliquesce, and by the 
mean of two analyses 
are composed of, 
Lime.. 
21*41 
Sulphuric acid.. 
60*25 
Methylic aether.. 
18*34 
100*00 
giving the formula 2 S + Ca + (2 C + 3 H -f- O). 
The sulpho-methvlate of lead usually obtained is in long prisms, 
which readily deliquesce, and are very easily decomposed, being re¬ 
solved into sulphate of methylene and sulphate of lead. The mean 
of seven analyses of this salt gives for its composition, 
Oxide of lead. 49*76 
Sulphuric acid. 35*93 
Methylic aether. 9*81 
Water of crystallization. 4*50 
100*00 
giving the formula 2 S + P6 + (2 C + 3 H + O) + H. 
