422 Scientific Intelligence. 
TE. 
almost universally adopted by chemists, the results obtained by Wil- 
liamson are to be explained by supposing that one eq. of oxyd of ethyl 
is capable of voiting with one eq. of oxyd of methyl to form a com- 
pound in which one of these two oxyds performs precisely the same 
function as tie water in ordinary alcohol. ‘The formula of the new 
of ethyl and methyl and not a chemical combination of the two. This 
argument falls to the ground, however, when we consider that difference 
in the bodies combining is absolutely essential for chemical combination, 
and that we know of no one instance in which two molecules of the 
same kind unite chemically; it is therefore easy to see why two mole- 
organic radicals in the manner described will lead to the discovery 
the true molecular structure of a vast number of organic compounds 
pressed by the equation C,H,0,4C,H,I=C,H,O,+HI. w. 
8. On the theory of anisol and its homologues.—The researches of 
Williamson on the replacement of the hydrogen of the alcohols by the 
radicals methyl, ethyl, amyl, &c., have led Cahours to examine the ac- 
tion of the iodids of these radicals upon the compound of potash and 
oxyd of phenyl represented by the formula C,,H,O+KO. When 
phenol-potash and iodid of methyl are exposed together ina sealed 
tube to a temperature of from 100° to 120°, double decomposition 0¢- 
curs and the results are iodid of potassium and anisol. The reaction 
‘In this case is represented by the equation 
C,,H,KO,+C,H,I=C,,H,O,+Kl. . 
With iodid of ethyl and phenol-potash a similar reaction occurs and 
phenetol is formed; with iodid of amyl a new compound is formed 
which the author terms phenamylol. The formation of phenetol and 
phenamylol may be represented by the equations x eke sg 
C,,H,KO,+C,H,I=C,,H,,024+KI ie 
C,,H,KO,+C,,H, ,I=C,2H,,02+Kl ee 
