124 VETEEIXARY MATERIA MEDIC A. 



and about six per cent, of alcohol, containing a little 

 water. Specific gravity not higher than 0.725 at 

 SQ"" F. Like ether, it must be carefully preserved. 

 It is a thin, clear, very diffusive and colorless liquid, 

 of a refreshing, characteristic odor, a burning and 

 sweetish taste, with a slightly bitter after-taste and 

 a neutral reaction. It is soluble in all proportions, 

 in alcohol, chloroform, benzol, benzine, fixed and 

 volatile oils, and dissolves in eight times its volume 

 of water at 59° F. Ether is highly inflammable, 

 and its vapor when mixed with air and ignited ex- 

 plodes violently. It is a solvent for oils, fats, resins, 

 guncotton, gutta-percha, and other substances. 

 Dose: H., fl. 3 i.-ij. ; D., fi. 3 ss.-i. (always well di- 

 luted with cold water, gruel, oil, or linseed tea). For 

 general anaesthesia. — Dose (by inhalation): H., fl. 

 3 iij.-viij. ; D,, fl. 3 ij.-vi. This is the ether which 

 should be given internally and by inhalation. 



Preparations of Ether. — Spiintus ^theris 

 Compositus, compound spirit of ether, Hoffmann's 

 anodyne. Contains alcohol 67, stronger ether 30, 

 ethereal oil 3 parts. 



Collodium, collodion. Contains pyroxylin 4, 

 stronger ether 70, and alcohol 26 parts. Local use. 



CoUodmm Flexile, flexible collodion. Contains col- 

 lodion 92, Canada turpentine 5, and castor oil 3 

 parts. Local use. 



CoUodium Stypticuin, styptic collodion. Contains 

 tannic acid 20, alcohol 5, stronger ether 20, and collo- 

 dion 55 parts. Local use. 



Spiritus ^theris Nitrosi, Spiritus Nitrico- 



