i a RS NS. ay 
peboratory, was found to yield, under 
1 
Scientific Intelligence. : 267 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY. 
Tecuntcat Coemistry.— 
ly. 
The coal-tar products which have, up to the present, yielded coloring 
Matters, are numerous. The following is a list of the most importan 
products, and its derivatives—na ely i He 
neline was discovered 26 by Unverdorben. The original method 
for its preparation was b esting indigo wi drate of potassa, and 
subjecting the resulting product to distillation. Aniline was also obtained 
from the basic oils of coal-tar; but the process which is now employed 
for its Preparation is a remarkable instan 
Pee ad Bean ; ist in lar 
of it being called benzole. After this, Mansfield found it to exist in large 
it Is now obtained in very large quantities. 
nin afterwards discovered the remarkable oe 
It is Béchamp’s process 
is now employed for the preparation of aniline by the ton, Had 
