LIST OF MEDICINES. 391 



necessity of keeping sheep freely supplied with salt has been 

 referred to under Summer and Winter Management. For 

 its great efficacy in Rot, see page 378. 



SALT-PETRE. See Nitre. 



SETONS. The mode of inserting these is pointed out at 

 page 348. 



SPIRIT OF NITROUS ETHER, (Sweet Spirit of Nitre.) In 

 doses of two drachms ; a valuable diaphorectic, diuretic and 

 anti-spasmodic. It is much used in fibrile affections. 



SULPHATE OF COPPER. See Blue Vitriol. 



SULPHUR. Internally an aperient in doses from one to 

 two ounces. Externally it forms the basis of ointments used 

 in various cutaneous diseases. 



SULPHURIC ETHER. A powerful stimulant and anti-spas- 

 modic. Dose one drachm, 



SULPHURIC ACID. A powerful caustic, used alone, or in 

 combination with other ingredients, in advanced stages of 

 hoof- rot. 



SULPHATE OF IRON, (Copperas or Green Vitriol.) Used 

 in hoof- rot remedies, but much less valuable for that purpose 

 than blue vitriol. Internally a tonic. 



SPIRIT OF TAR Destroys maggots, and prevents the fly 

 from depositing its eggs in ulcers or wounds. 



TAR Is an impure turpentine, but it contains several 

 distinct principles, of which creosote is one. Internally it is 

 stimulant, diuretic, anthelmintic, and in large doses is laxative. 

 Externally it is a stimulant, produces a good effect on foul or 

 indolent ulcers, and repels attacks of the fly. It is also 

 resorted to as a mechanical coating for the feet, &c., when 

 denuded of their natural coverings, in order to retain other 

 applications underneath, keep out water, &c 



TOBACCO. A decoction of it kills the acarus of scab, and 

 thus cures that disorder. It also kills ticks, lice, &c. An 

 injection of it, or the smoke of it blown into the nostrils, causes 

 the larvae of the the Gad-fly to be dislodged from the cavities 

 of the head. Altogether it is a most valuable sheep medicine, 

 and every sheep farmer should cultivate it in his garden for 

 that purpose. Tobacco ointment, made by boiling an ounce 



