LI^ 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-Petke. — See Nitre. 



Sbtons. — The mode of inserting these is pointed out at 

 page 348. 



Spirit of Niteotjs Ethee, (Sweet Spirit of Nitre.) -^ In 

 doses of two drachms ; a valuable diaphorectic, diuretic and 

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



Sulphate of Copper. — ^See Blue Vitriol. 



Sulphite. — Internally an aperient in doses from one to 

 two ounces. Externally it forms the basis of ointments used 

 in various cutaneous diseases. 



Sulphuric Ethee. — 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 Ieon, (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, &o., when 

 denuded of their natural coverings, in order to retain other 

 applications underneath, keep out water, <fcc 



Tobacco. — A decoction of it kills the acarus of scab, and 

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



