On anew Element, probably of the Sulphur Group. 301 
When these bodies are treated with potash, hydrochloric acid is 
removed, and the resultant compound, ethylglycide, is a glycide 
containing the alcohol radical in the place of an equivalent of 
hydrogen :— 
C® Hé (C4 H5) Cl0*— HC1=C® Hi (C* H9) 04. 
Hydrochloric Ethylglycide. 
ethylglycerine. 
Ethylelycide is a mobile liquid boiling at 128°. When treated 
with hydrochloric acid, it yields the compound C® H® (C* H®) Cl0*, 
If the compound hydrochloric amylglycerine be treated with 
ethylate of soda, ethylamylglycerine is formed. Thus,— 
C® H¢ (C'° H") ClO4+ C4 H® NaO?= C H$ (C!° H") (C4 H®) O° + NaCl. 
Hydrochloric Ethylate Ethylamylglycerine. 
amylglycerine. of soda. 
The glyceric ethers containing two equivalents of the same acid 
are Only a particular case of this reaction. 
When hydrochloric glycide is acted upon by hydrosulphate of 
sulphide of potassium, a compound is obtained analogous to 
mercaptan, 
C* H® ClO?+ KS HS=KCl1+ C® H® S? 0?, 
Hydrochloric New body. 
glycide. 
A second mercaptan in this series is doubtless formed by the 
action of dihydrochloric glycide on hydrosulphate of sulphide of 
potassium, and which would have the formula C® H® $+. 
XLVI. On the existence of a new Element, probably of the 
Sulphur Group. By Witi1smM Crooxss, F.C.8S*, » 
ie the year 1850 Professor Hofmann placed at my disposal 
upwards of 10 lbs. of the seleniferous deposit from the 
sulphuric acid manufactory at Tilkerode in the Hartz Mountains, 
for the purpose of extracting from it the selenium, which was 
afterwards employed in an investigation upon the selenocyanidest. 
Some residues which were left in the purification of the crude 
selenium, and which from their reactions appeared to contain 
tellurium, were collected together and placed aside for examina- 
tion at a more convenient opportunity. They remained unnoticed 
until the beginning of the present year, when, requiring some 
tellurium for experimental purposes, I attempted its extraction 
from these residues. Knowing that the spectra of the incandescent 
vapours of both selenium and tellurium were free from any 
* Communicated by the Author. 
+ Chem. Soc. Quart. Journ. vol. iv. p. 12, and Gmelin’s Handbook 
(Cavendish Soc, Translation), vol. viii. p. 122, 
