102 
AN ANALYSIS OF ERGOT OF RYE. 
rated at a low temperature it is almost colorless, and if under the 
air-pump entirely without color. As will be shown, it has the 
same ultimate constitution as castor oil, and its fat acids indicate 
a similar constitution to those of the latter oil in their combina- 
tions with bases. 
I determined the composition of the pure colorless oil by burn- 
ing it off with the oxide of copper and chromate of lead. The 
results of this analysis of oil of ergot are as follows : 
Oil. Carbonic Acid. Water. 
I. 7-780 grs. yielded 8*050 
II. 8-265 " " 22-43 8'545 
III. 9-005 " " 24-35 9-460 
These correspond to 
I. II. III. Average. 
Carbon 74-011 73-75 73-880 
Hydrogen, 11-491 H'483 1 1*67 11548 
Oxygen 14*506 14-58 14-572 
100- 100- 100- 
The result agrees with the analysis of castor oil, which, as 
before stated, this oil resembles closely in its odor and taste, but 
differs essentially from it in its insolubility in alcohol. 
A portion of the oil being saponified by potash, a lead soap was 
prepared from it, of which four ultimate analyses were made, but 
it could not be obtained of constant composition, and yielded very 
unsatisfactory results. The lime soap was also examined and 
gave unsatisfactory returns. 
Several analyses of the barytic soap gave the following re- 
sults : 
I. 
II. 
III. 
Average. 
Equiv. 
Calculated. 
Carbon, 
56.458 
58.91 
57.684 
33 
57.48 
Hydrogen, 8.499 
8.766 
8.36 
8.541 
30 
8.71 
Oxygen, 
^ 34.776 
32.73 
11.405 
5 
11.61 
Baryta, - 
22.370 
1 
22.20 
100.000 
100.00 
100.000 
100.00 
It was shown that the oil after cooling below 32° F., separated 
a very small amount of solid fat, which was removed. The ba- 
lance being saponified by potassa and treated with chloride of cal- 
