Chemistry and Physics. 305 
roots, etc., and known as fusel oil. It was discovered by Dumas 
in 1835 and its constitution was fixed by Erlenmeyer in 1867, b 
proving that it yielded on oxidation a valeric acid identical with 
one prepared by him from isobutyl cyanide, and also with the iso- 
propylacetic acid of Frankland. It is therefore the second of the 
alcohols above given, viz., isobutyl-carbinol. Wurtz, in 1862, pre- 
ared a second amyl alcohol from ie which was pr roved 
zine ethyl on propionyl held This eons as well as its 
n 
and h nen being directly united. For these reasons, zine ethyl 
should act upon ethyl formate to produce a compound which, 
acted on by water, should yield a oe amyl alcohol. Ex- 
Qi 
° 
ay 
°o 
S 
° 
mh 
co 
ae 
o 
es EP 
: 
= 
gg 
5 
o < 
ee 
a 
° 
a 
a 
Ee 
° 
ie) 
oO 
22 
5 
o 
— 
§ 
t=] 
' 
After cooling the crystalline mass was treated with hse ro 
then with h ‘froth ba acid to dissolve the zinc hydrate 
mitted to distillation, From the distillate the se 
