412 Scientific Intelligence. 
evolved in the cold, as well as a mixture of gases not absorbable 
_-by bromine. In the residue, beside the unaltered AI,Cl 
contained various hydrocarbons, some of high boiling point. If, 
ri é" 
Iodides and bromides act similarly, though not as uniformly. 
Ethyl iodide treated as above gave ethylbenzene, methyl chloride 
zene, gives, by 1 u loride, the 
zophenone, acetyl chloride gives acetophenone, phthalyl chloride 
organic compound to be first formed and then decomposed, regen- 
erating the chloride, thus: 
C,H,+Al,Cl,=HCl-+ Al,Cl,(C,H,) 
Al,Cl,. (C,H,)-+(CH,C,H,)CI=Al,Cl,+-(CH,. C,H,)C,H,. 
4, On the Amylene from Amyl Iodide.—EureKorr has inves- 
tigated the action of alcoholic potash upon the amylene dibro- 
mide obtained from amy] iodide, and concludes that this amylene 
is really a mixture of two isomeric bodies, isopropylethylene 
