AMIDES OF THE FATTY ACIDS. 303 
Theory. Mean. 
SSE 
Cs 216 76-86 76°44 
H,, 35 12:45 12°70 
N 14 4:98 4:88 
0, 16 571 5:98 
281 100-00 100-00 
Castor Oil. 
I had commenced the examination of the action of ammonia upon castor oil 
previous to the publication of M. Bovis’ paper upon the same subject, but as he 
has described ricinolamide, and some of the products of its decomposition, I did 
not continue my own experiments in that direction, though I made a partial ex- 
amination of the mother liquor filtered from the amide. 
When this filtrate is concentrated by evaporation, the addition of hydrochloric 
acid to it causes the separation of an oil which was collected upon a moistened 
filter, washed with water, and then dissolved in ammonia. The addition of 
chloride of barium to this solution gave a precipitate, which was purified by re- 
peated crystallizations from alcohol. It fuses under alcohol, and adheres to the 
bottom of the vessel, but is more readily soluble in alcohol than oleate of baryta. 
By analysis it was found to be ricinolate of baryta. 
I +3120 grammes of substance gave 
: ‘0995 ~~... of sulphate of baryta. 
I -2444 orammes of substance gave 
“| 0785 + of sulphate of baryta. 
JI +3333 grammes of substance gave 
: ‘1070 ~=—...._~—s of sulphate of baryta. 
*3108 grammes of substance gave 
IV. °6675  ... of carbonic acid, and 
"2533... of water. 
I. Il. Ill. IV. 
Carbon, 5 ce ae oe nee 58°57 
Hydrogen, . : oat see mee 9:05 
Baryta, i . 20°95 21-10 21:09 
Theory. Mean, 
Cre: . 216 59°08 58:57 
a eR 7 4B eget RHE 9-02 9:05 
0, 5 pring) 10°95 11°33 
BaO . S056 20:95 21:05 
365°6 100-00 100-00 
The cause of the presence of ricinoleic acid in the mother liquor is explained 
_ by aremark made by M. Bouts in his paper, viz., that ricinolamide is decom- 
4 posed by acids even in the cold. A small quantity of this amide must have been 
_—s«- VOL. XXI. PART II. 4M 
