144 Scientific Intelligence. 
Zixc-Bioom [460, 513].—The zinc-bloom of Santander near Cumillas in Spain has 
been analyzed by T. Petersen and E. Voit (Ann. d. Ch. u. be cviii, 48), 
following are their i: (1A) the interior of a mass and (1B) the same after a 
slight poi and also other analyses (2, 3) of the Seataia mineral by 
Braun (loc, cit.) 
Zn 
1A. 5:1 731 100 
1B. 13°81 74°13 11-45= 99°99 
2. 13°33 73°15 12°96, mixed Calamine 1°34 
3. 14°32 73°83 11:87=100-0 
The constitution deduced from 1A, is 8Zn, 3G, 6H; from 1B, Zn6+22nH. 
Analysis of zinc- cag ne from a lead mine near "Romsbeck in ba ogi by C. 
Schnabel (Pogg., cv, 144): 6 12:30, Zn 64:04, Cu 0°62, Fe and Al 2°58, Ca 052, 
H 13:59, Mate sorted his 2-02 (ao ‘ying in a water-bath), siliceous abst 3°88, 
Mg, Mn, 3 traces=99'45—=Zn*® 6+3H. 
SCIENTIFIC INTELLIGENCE. 
J, PHYSICS AND CHEMISTRY. 
On the oxyd of ethylene—A. Wurtz has found that when glycol, 
CulisOo 4-280, is saturated em muriatic aa gas and heated in a closed 
tube water is set free and a new ether formed. The reaction is mere 
sented by the equation 
CsH604 + HCl = CaHsClO2 + 2HO, 
The new ether is a colorless neutral liquid — in water and boiling at 
128°; e author considers this as een glycol, CaH6Os, and 
the Dutch liquid, CaHsCle. A solution of otal decomposes the new 
ether giving oe of potassium and the ed of ethylene, ve 
t forms no ba te pobre with ammonia. Perchlorid of phot 
phorus converts it into Dutch liquid. We have, namely, the equation 
C4H402 + POCls = CaHaCle + PO2Cls, 
By a similar process Wurtz has prepared the oxyd of propyl- elven 
. The relations Sic bias the diatomic ethers and aldehyds 
best exhibited by the for 
cera t Aldehyd CaHa.O2 = Ethylen oxyd 
Calls0» t Propionic aldehyd CeHs.O2 — Propylen oxyd. 
Goiniiies Rendus, xlviii, 101. 
2. On the chemical constitution of lactic acid.—Ko.ne has bro 
forward a new view of the constitution of lactic acid whieh connects this 
id, The mens in the first place refers to the fact that the researches 
of Perkin and peiipe = y be regarded as as proving that glycosine is 
Biibioaocti uel y ches action of nitrous acid upon glycosine, alanin, 
