166 Mr. W. Francis's Chemical Examination of the 



III. 0'259 grm. of the salt gave 0*205 water, which reduced 

 to 100 parts, gives 



According to theory. 



III. 



35 at. Carbon 54-94 



68 ... Hydrogen .... 8*78 8-83 886 8*79 



3 ... Oxygen 6*23 



1 ... Oxide of silver. . 3005 



10000 100-00 100-00 

 Stearophanate of the Oxide ofJEthyle. — This salt is a solid, 

 brownish-white, semi-transparent mass. It was formed by 

 passing a stream of dried muriatic gas for several hours into a 

 warm saturated alcoholic solution of the acid. After some time 

 the aether collects upon the surface as a colourless oily fluid, 

 which solidifies on cooling. A portion still remaining in solu- 

 tion is obtained on the addition of water. To free it from acid 

 it was boiled several times with a dilute solution of the carbo- 

 nate of soda, and afterwards with water. It melts at 32° C, 

 is very fragile, void of smell in the cold, but on being warmed 

 acquires a slight fruity odour. It melts easily on the tongue, 

 imparting to it a sensation of cold, and has a buttery taste : 

 it is very volatile, but is partially decomposed on distillation. 

 It is decomposed by potash into the stearophanate of potash 

 and alcohol. 



The composition was ascertained in the following ultimate 

 analyses : — 



i. 0*381 grm. of the aether gave 1*0668 carbonic acid, and 

 0-486 water. 



ii. 0*247 grm. gave 0*6925 carbonic acid, and 0*286 water. 

 No. I. analysis was made with oxide of copper. For No. 

 ii. I am indebted to the kindness of Dr. Lawrence Smith ; it 

 was made with oxide of copper and chlorate of potash. 



i. n. 



Carbon . . 77*01 77*09 



Hydrogen. 12*69 12*85 



Oxygen . . 10*30 10'06 



which agree with the formula C 4 H ,0 O + C 35 H 6 " 8 O 3 . 

 39 Carbon . . 295840 77*11 



78 Hydrogen. 491*70 12-51 



4 Oxygen . . 400-00 10*38 



3850*10 

 Stearophanine. — The mode of preparation has been described 

 above. When the fat is extracted by pressing the grains be- 

 tween hot plates, or by means of boiling water, it is always 

 contaminated by the free acids, colouring matter, &c, from 

 which it separates with great difficulty. If, on the contrary, the 



