~~ 
Chemistry and Physics. 307 
n the Phosphorescent Flame of Sulphur.—Huvwann, hav- 
in the same way: cinnabar, antimonious sulphide, arsenous sul- 
phide, auram musivum, sodium thiosulphate, potassium xanthate, 
ite flame. The odor emitted when 
the sulphur thus burns is peculiar, recalling that of hydrogen per- 
: ne ce and is the odor ordinarily 
ascribed to sulphur vapor. On examining it closely, however, 
nothing could be recognized in it but sulphurous oxide.— Ber. 
Berl. Chem. Ges., xvi, 139, Feb. 1883. .¥. B 
4. On the Hydrates of the Sulphydrates.—An extended memoir 
i 
pounds he calls sulphydrated hydrates. The compound with 
hydrogen sulphide itself was observed by W ohler in 1840. It is 
formed whe S and water are enclosed in a strong tube, in 
se 
3 
atmospheres. At low temperatures, however, 
ciation is very feeble. On analysis the crystals contained from 
12-4 to 166 molecules of water for one of HS. As 
( , formula H,S(H,9),,. 
and composition of the sul hydrated hydrates of the simple ethers 
of the fatty series and of hicks chlorine, bromine and iodine deriv- 
Atives, are described. Forty-eight substances were examine 
of these thirty yielded the sulphydrated hydrate. The general 
. 
