SULPHUR 321 



body. It should not be prescribed with bismuth subnitrate, 

 liquorice, nitrous ether or any drug containing starch. 



Externally, usually with soap liniment and laudanum, it is 

 applied to painful, swollen rheumatic joints, and to the 

 inflamed udder in cows and ewes. A solution of five grains 

 in one ounce of water is recommended as an application for 

 recent corneal opacities. It is much used for increasing the 

 solubility of iodine, both in water and alcohol. 



DOSES, etc. Horses and cattle take 3J- to 3 V J- J sheep 

 and pigs, grs. xx. to grs. Ix. ; dogs, grs. jv. to grs. xx., 

 repeated two or three times a day, and given either in bolus 

 or solution, in water or spirit. Its effects are increased when 

 it is given with common salt, more iodine being thus liber- 

 ated. A convenient solution for intratracheal use is made 

 with 30 grains of iodine, 2J drachms potassium iodide, 

 dissolved in 4 ounces of distilled water. The dose is Tl\30 

 to IT\60, mixed with an equal measure of water. 



Iodide of sulphur is a stimulant and parasiticide. It is 

 prepared by mixing, in a Wedgwood or glass mortar, four 

 parts iodine with one of sublimed sulphur, and gently heating 

 until the mixture liquefies. The red-brown liquid, as it 

 cools, becomes a grey-black crystaUine mass, insoluble in 

 water and alcohol, but soluble in glycerin and fats, with 

 eight or ten parts of which it is mixed for liniments or 

 ointments, which are suitable for chronic scaly skin com- 

 plaints, ringworm, and mange. 



SULPHUR 



Sulphur, or brimstone, is one of the most ancient articles 

 of the Materia Medica. It occurs in many animal substances 

 as sulphates, and notably also in bile and the albuminoids ; 

 in the strong-smelling volatile oils of the Cruciferse and Um- 

 belliferse ; in various mineral waters as hydrogen sulphide, 

 and in the pyrites or metallic sulphides, from which it is 

 extracted by roasting. The extensive supplies of sulphur 

 required in the manufacture of sulphuric acid, sulphurous 

 acid, gunpowder, lucifer matches, and vulcanised india- 

 rubber, are, however, chiefly obtained from the native 



