ON CHLOROrORM. 101 
which the strength of these compounds ntiay be estimated. 
Some specimens contain only five or six per cent, of chlo- 
roform, while others contain sixteen or eighteen per cent. 
The latter may be considered the composition of good 
chloric ether, and this quantity ought to separate from the 
spirit, forming a dense stratum at the bottom, when the 
chloric ether is mixed with twice its volume of water. The 
separation should be effected in a graduated tube, and the 
mixture well shaken together to insure the complete re- 
moval of the spirit by the water, the mouth of the tube 
being at the same time closed with a cork, to prevent 
evaporation of the chloroform. 
% Chloric ether has been used for many years, and is 
strongly recommended by some medical men as a valuable 
diffusible stimulant when administered in doses of half a 
drachm or a drachm. It is worthy of trial as a remedy for 
cholera. As the chloroform, the active constituent of this 
so-called ether, is separated and rendered insoluble on ad- 
mixture with water or aqueous liquors, it seems desirable 
to point out a convenient form for its administration. Cases 
have occurred in which a patient has been intoxicated by 
the last dose of a mixture containing chloric ether, the 
chloroform having separated and collected at the bottom of 
the bottle, and having been consequently administered 
almost exclusively in this dose. 
Mr. Morson, who has had much experience in the prepa- 
ration and administration of chloric ether, recommends the 
following as the best method of administering it : — 
^ Chloric ether, 5vj. 
Syrup, gss. 
The yolk of an egg. 
Distilled water, givss. 
Rub the yolk of egg with the syrup, then add the chloric 
ether and the water, mixing them together to form an 
emulsion. The chloroform is held in suspension in this 
mixture, so that the evil above alluded to would be ob- 
viated. — Pharm. Journ. 
