308 DR T. H. ROWNEY ON THE AMIDES OF THE FATTY ACIDS. 
oil; also from almond and castor oils, after solidification by nitrous acid, we ob- 
tain elaidamide and palmamide, these amides being isomeric with oleamide and 
ricinolamide. 
The only other point to which I shall refer is the temperature at which these 
amides fuse. M. Bountay states that the fusing point of margaramide is 60° C., 
but; according to my own experiments, I have found it to be as high as 103° C., 
though in the cases of the amides from linseed and croton oils, it was as low as 
100° C., but this arose from these substances not being perfectly pure; and it is 
probably a similar cause that occasions the error of M. Bouttay. I am also in- 
clined to think that the fusing points of ricinolamide, 66° C., and isocetamide, 
67° C., are too low. Isocetamide only differs by 2C, H, from margaramide, the 
fusing point of which is 103°; and ricinolamide is closely related to oleamide, 
which has a fusing point of 82°C., and the isomeric amides, palmamide and 
elaidamide, both fuse at about 94° C. 
In conclusion, I have to express my thanks to Dr ANpErson for the use of his 
laboratory, and also for many suggestions during the progress of this investi- 
gation. 
