114 Scientific Intelligence, 
fluence of light, and with oxyd of silver yield S, ft which possesses 
tremely energetic alkaline properties. The salts of tri-methy] sulphurine 
pear well, but are usually deliquescent. The iodid of ethyl-dimethyl 
“3 
su!) hurine So, 3 , may be prepared in a similar manner, and yields 
a basic oxyd and crystalline salts. Todid of methyl unites with tellurid 
of methyl to form a crystalline mass which has the formula Te, 4 + *3, 
With oxyd of silver this salt yields a basic oxyd. A similar ethyl com- 
ound also exists as well as analogous bodies containing selenium in 
place of tellurium or sulphur. Sulphid of allyl also combines with iodid of 
methyl, yielding the iodid of tri-allyl sulphurine S, i (Ce oHs)s. Bromid 
of ethylene, C,H,Br,, unites with sulphid of methyl to form a bromid 
(CoHs), aaa 
having the formula C,,H,,Br,8,—S, 4 (C,H,)”. This bromid yields 
B 
‘3 
a basic oxyd and well defined salts. Brominated bromid of ethylene 
4H,Br, unites eS sulphid of methyl to form a bromid having the 
(CoH), 
formula S, (Cy sa si Todoform C 2HI, gives an analogous iodid. It 
is ony, to see oe all the above mentioned compounds belong to the 
types S,X,, 8,X,, or S 6X12, and that sulphur, selenium and tellurium 
must be regarded in these ome unds as tetratomic.—Bulletin ns la ei 
ciélé Pritts July, 1865, p. 
. On some salis of teroryd * thallium.—SrrecKer has deseri ibed s sev- 
eral inetig salts of the teroxyd of thallium which possesses well 
of soda is added to oa solution of proto-chlorid of thallium in carbonate 
of soda, a brown precipitate of teroxyd of thallium is gradually formed 
which settles slowly and may be washed by decantation. According | [ 
Strecker the teroxyd is anhydrous; warm dilute sulphuric acid 
dissolves it to a salt which, dried in air, has | the formula TIO, "3505+ 
7HO; the salt when dried at 220°C. contains only one equivalent of 
water. Heat decomposes the sulphate according to the equation 
TIO,, 3880,+-HO=TIO.SO,+S0,+HO.SO,+-20. 
The sulphate combines with the sulphates of soda and potash to form. 
double salts which have respectively the formulas 
TIO,, 380,+4+Na0, SO, and TIO,, 2SO,-+-2(KO, SO,). : 
Oxalate of ammonia gives a heavy white precipitate in a solution of the 
