VETERINARY MATERIA MEDICA. 657 



the sole. Tar has also been given inwardly in balls for 

 coughs. 



Tar, Barhadoes. — This is the more cleanly preparation 

 to be employed as an internal remedy, and is often given 

 for coughs. Mr. Hart has attempted to sanction the use 

 of it, under the name of Green Naphtha, as an internal 

 remedy in all chronic chest affections. 



Tannin is prepared from oakgalls ; when concentrated with 

 galhc acid, it then effectually becomes a powerful astrin- 

 gent. 



Tartarized Antimony (Antimonii tartarizatum) . — See An- 

 timony. 



Tents are substances introduced into wounds, to prevent 

 their too early closing. In deep lesions having a narrow 

 outlet, or when any foreign body remains to be expelled, 

 they may be very properly employed ; and any soft sub- 

 stance, as lint or tow, may be introduced for this pur- 

 pose. 



Tin. — This is used as a vermifuge for horses. It has, how- 

 ever, but moderate efficacy, and, when given, it should 

 be always in fine filings, and not levigated, as there is 

 reason to believe its action is purely mechanical ; in 

 which case, tin must be preferable to pewter filings, as 

 being harder ; but the last are generally substituted. Dose, 

 three ounces daily. 



Tinctures are solutions of vegetable or other matter in spi- 

 rituous liquors, of various strengths and of different kinds. 

 When any of the resinous gums are to be dissolved, pure 

 spirit of wine should be used. When the roots, bark, 

 leaves, &c. of plants are to be made into tinctures, dilute 

 or proof spirit is sufficient. Most of the tinctures of the 

 human pharmacopoeia may occasionally be employed in 

 veterinary practice, but, for the above reasons, this will 

 never be a very useful formula. The principal ones in 

 use are tincture of aloes ; compound tincture of ben- 

 jamin ; tincture of myrrh ; and tincture of Spanish flies ; 

 all of which are occasionally used. Internally, also, all 

 of them are stomachics and tonics. Tincture of catechu 

 likewise may sometimes be useful in astringent drinks. 

 The tincture of opium also would be of use. Foxglove, 



u u 



