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310  Dr.Smith on the Composition. of Spermaceti. 
Out of this the following formula is calculated. 
In 100 parts. 
Atoms. Atomic weight. Calculated. Rounds 
32 Carbon, 194.18 53.16 53.00 
31 Hydrogen, 31.00 8.48 8.47 
3 Oxygen, 24.00 — 6.57 6.83 
1 Oxide of silver, 116.13 a149 31.70 
365.31 100.00 100.00* 
The anhydrous acid is constituted as follows : 
Atoms. Atomic weight. In 100 parts. 
32 Carbon, 7 6 ni ea gate 77.92 
31 Hydrogen, . 2 31.00 12.44 
3 Oxygen, ‘ ‘ 24.00 9.64 
: 249.18 100.00 
The atomic weight of this acid, found by burning the silver 
salt, was 250.24. The acid not in combination with a base, con- 
tains one atom of water, and has for its composition— 
Atoms. Atomic weight. Calculated. Found. 
32 Carbon, 4.1 75.21 75.13 
32 Hydrogen, 32.00 12.39 ‘12.51 
A Oxygen, 32.00 12.40 12.36 
— 
258.18 100.00 100.00 
After the results afforded by these analyses, it is impossible to 
confound this acid with margaric acid, and particularly too, as 18 
composition agrees with that of another acid described by Dumas 
and Stass, under the name of athalic acid, and which they ob- 
tained by acting upon athal with potash, at a temperature of 
from 390° to 410° F.. The acid then which has just been de- 
scribed, and which was obtained from the saponification of spel 
maceti, is athalic acid. . 
The athal that Chevreul mentions as being the base of sperma 
ceti, and related to it, as glycerine is to the other fats, was found 
to be of the same nature that he describes it to be. — 
eer ee ee 
In 100 parts. 
206.31 54.5) 
: $3.00 8.65 
pig eecncear 2? ORF GAlienn + 0-00 6.30 
Chbul «~ gege5) Oxideof silver, 116.13 30.48 
379.44 100.00 
