302 DR T. H. ROWNEY ON THE 
The following are the numbers obtained :— 
I 2550 grammes of substance gave 
“\{:0865 ... of sulphate of baryta. 
Ir +2227 grammes of substance gave 
“\:0765  ... of sulphate of baryta. 
2472 grammes of substance gave 
III. {-5485 ... of carbonic acid, and 
‘21138 ... of water. 
I. Il. Ill. Mean. 
Carbon, ais eae 60°51 60°51 Cae 216 61:78 
Hydrogen, ae nian 9-49 9°49 ries 33 9:44 
BaO A 22-28 22°56 ee 22-42 BaO 76:6 21:91 
Oxygen, 5 safe 7-58 0, 24 6°87 
100-00 349-6 100-00 
Elaidine. 
The solid fat or elaidine, obtained by passing nitrous acid into almond oil, is 
readily acted upon by ammonia, and yields a large quantity of a crystalline amide. 
Upon the addition of this reagent a deep red colour is produced ; and when the 
action is completed, the whole is transformed into a pasty mass, which is collected 
on a filter, washed with water, and expressed, by which means most of the 
colouring matter is removed, the mass is purified by several crystallizations 
from alcohol; and the amide is then obtained in brilliant groups of perfectly 
colourless crystals, which are very soluble in alcohol but insoluble in water. 
Elaidamide is decomposed by fusion with potassa, ammonia being evolved, but a 
solution of potassa is entirely without action upon it. In this property it resem- 
bles oleamide; indeed, all the fatty amides which I have examined agree in this 
respect. 
It begins to fuse at 92° C., and is completely fluid at 94°C.; upon cooling it 
solidifies at 91° C. and becomes opaque. 
The analysis gave the following results :— 
*2035 grammes of substance gave 
I *5725  ... of carbonic acid, and 
2323 =... of water. 
‘2100 ~=...._~— of substance gave 
II 5865  ... of carbonic acid, and 
2405 ... _— of water. 
II ‘4790  ... of substance gave 
: 0234 =... of nitrogen. 
I. II. Jil. 
Carbon, : . 76°72 76.16 are 
Hydrogen, . : 12°68 12.72 bie 
Nitrogen, . . oe ae 4°88 
