17 
easily distilled along with steam than the other modifications. 
It separates in oily drops from a solution in boiling water, 
which afterwards form dark yellow long fine needle crystals, 
which melt at 66 deg. C. It does not sublime in needles hut 
in oily drops, which afterwards crystallize; its salts have a 
distinct yellow colour. By heating ortho*mononitrobrombenzol 
with an aqueous solution of caustic potash. Von Richter obtained 
ortho-nitrophenol which melted at 110 deg. C. We, in the 
same manner, from the meta-mononitrobrombenzol received the 
modification of nitro-phenol, which melts at 45 deg. C., which 
must therefore belong to the meta series. A table was ex¬ 
hibited showing the classification of these compounds,* and also 
specimens of them. Mr. Walker showed some of the recently 
discovered dinitro-plienyl-jplienyl-amine which he had prepared, 
and gave an account of an attempt to make the corresponding 
mono-nitro compound by the heating anilin with mono-nitro- 
brombenzol: no crystalline compound was formed, but the mix¬ 
ture turned a blue colour. It was boiled for several days in a 
flask with an inverted condenser, evaporated to dryness with 
hydrochloric acid, and purified by boiling with water. A resin 
was obtained, an alcoholic solution of which dyed silk an indigo- 
blue. Alkalies precipitated a base of a dirty white colour, which 
would not crystallize. Some of the resin was treated with 
nitric acid; an ammoniacal solution of the substance formed 
dyed silk a yellow brown colour. Specimens of dyed silk were 
exhibited. 
Ortho-series. 
Meta-series. 
Para-series. 
«-Bromonitrobenzene. 
Melting point 125°. 
a-Bromaniline, 
from Acetanilide. 
Nitraniline, 
from Acetanilide. 
Melting- point, 146°. 
Orthonitroplienol. 
Melting-point, 110°. 
Dibromobenzene. 
Melting- point, 89°. 
c-Bromonitrobenzene. 
Melting- point, 37°—38°. 
(Hiibner and Alsberg.) 
c-Bromaniline. 
(Hiibner and Alsberg.) 
Metanitraniline. 
Melting point, 66°. 
Xitropbenol. 
Melting- point, 45°. 
5-Bromonitrobenzene. 
Melting point, 56°. 
(Oriess.) 
5-Bromaniline. 
(Gri’iess.) 
Paranitraniline. 
Melting- point, 108°. 
Unkno-wn. 
Dinitrobenzene. 
E 
