582 PROFESSOR ANDERSON ON THE PRODUCTS OF THE 
it communicates its smell to that fluid when shaken with it. It dissolves in all 
proportions in alcohol, ether, the fixed and volatile oils. It has a highly charac- 
teristic empyreumatic smell, quite distinct from that of picoline, without pungency, 
and closely resembling that of the bases extracted from the portions of Dippel’s 
oil of very high boiling point, and which not improbably contain it. Its smell 
adheres pertinaciously to the fingers. It fumes slightly when a rod dipped in 
hydrochloric acid is brought near it, and restores the blue colour of reddened 
litmus. Boiled with strong nitric acid, it gives off red fumes, and on dilution 
with water a small quantity of a resinous matter deposits, but the greater 
part of the base is separated unchanged on the addition of potash. It gives an 
emerald-green precipitate with sulphate of copper, which dissolves in hydro- 
chloric acid, and forms a green solution, containing a double salt. Most of its 
compounds are uncrystallizable, and readily soluble in water. Its specific 
gravity is 1:077, and it boils between 500° and 600° Fahrenheit, and is partially 
decomposed. The portions employed for analysis were very carefully distilled 
for that purpose. Owing to the high boiling point, some difficulty was expe- 
- rienced in the combustion, and it was found convenient to weigh the substance 
in a small open tube, which was passed into the combustion tube. The results 
were,— 
8-730 ... — earbonic acid and 
3°060 grains of parapicoline gave 
I 
2158 ... water. 
10-601 ... carbonic acid and 
3-707 grains of parapicoline gave 
Ine 
2°655 ae water. 
4-270 grains of parapicoline gave 
Til. ¢ 12195 ... carbonic acid and 
3072 |... water. 
Experiment. Calculation. 
oe ieee 
xe II. In. 
Carbon, ; r : 7781 77-99 77°89 7742 Cr 72 
Hydrogen, . 0 ° 7:83 7:96 7:99 7:53 H, 7 
Nitrogen, “ 2 ace fac F 15:05 N 14 
10-000 93 
These numbers correspond almost exactly with those of picoline itself, as in- 
dicated by the calculation. The quantity of carbon in all the analyses is con- 
siderably above that required by theory; but it is easy to understand how a 
small quantity of empyreumatic matters formed during the decomposition may 
produce this effect ; and itis sufficiently obvious that the base is isomeric with 
picoline. This is further confirmed by the analysis of its platinum salt, which is 
