History of Chemical Discoveries. 30ei 
Substances 
Examined. 
Carbon. 
Hydro- 
gen. 
Oxy- 
gen. 
Azot. 
Original Den- 
sity. 
Density when 
distilled. 
Crystals of bilia- ) 
ry calculi, j 
84.068 
12.018 
3.914 
— 
Heavier th 
an water. 
Purified fat of pork, 
78.843 
12.182 
8.502 
0.473 
— 
0.8918 at 50o 
Elaine, 
74.792 
11.652 
13.556 
— 
— 
— 
Elaine olive oil, 
76.034 
11.545 
12.068 
0.353 
— 
0.915 at 15® 
Stearine oil of olive. 
82.17 
11.232 
16.302 
0.296 
— 
0.968 at 15« 
Nut oil. 
79.774 
10.570 
9.122 
0.534 
— 
— 
Oil of sweet al- ) 
monds, j 
77.403 
11.481 
10.828 
0.288 
— 
— 
Linseed oil, 
76.014 
11.351 
12.635 
— 
— 
— 
Castor oil, 
74.148 
11.034 
14.788 
— 
Combustimi (if different Oils reduced each to the Weight of a 
Gramme. 
Oils. 
Oxygen gas 
consumed. 
Carbonic 
acid gas 
produced. 
Azotic gas in 
the ammonia. 
Ratio of the oxygen 
gas to the carbo- 
nic acid gas. 
Nut oil. 
1.9778 litre. 
1.4833 lit. 
12.63 centimes 
100 to 75.00 
Oil of sweet al- > 
monds, j 
1.9699 
1.439 
6.571 
100 to 73.06 
Linseed oil, 
1,9247 
1.4134 
100 to 73.44 
Castor oil, 
1.8586 
1.3792 
a trace. 
100 to 74.20 
Dilatations or Densities at different Temperatures relatively to 
Water — 1 at 15° Centigrade. 
Degrees of the Centi- 
grade Thermometer. 
! 
12° 
25° 
50° 
94° j 
. j 
Nut oil. 
0.9283 
0.9194 
0.8710 1 
Oil of almonds, 
0.9201 
0.8632 
Linseed oil. 
0.9395 
0.9300 
0.9125 
0.8815 
Castor oil. 
0.9699 
0.9575 

0.9081 
Oil of olives, 
0.9192 
0.9109 
0.8932 
0.8625 
Concrete oil of anise, 

0.9849 
0.9256 
Essence of rhubarb. 
0.8901 
0.8805 
0.8604 
0.8208 
Rectified naphtha ) 
i of Amiano, j 
i 
0.7688 
0,7574 
0,7337 
— 
IV. Account (ff Brucine., a New Vegetable Alkali. 
This new alkali was obtained by MM. Pelletier and Ca-^ 
VENTOU from the Brucea antidysenterica. A kilogramme, or 32 
oz. troy, having been reduced to powder, was digested in sub 
phuric ether, to separate a fatty matter which it contains. The 
ether being withdrawn, it was heated with alcohol in successive 
portions, and when the different infusions were added together, 
X 2 
