MATERIA MEDICA AND THERAPEUTICS. 23 1 



species of cone bearers (pines). Two turpentines are official, 

 viz. : 



TEREbinThina- — Turpentine, obtained from the yellow and 

 other species of pine, a concrete oleoresin in tough yellow masses. 



TEREbinThina canadensis — Canada Turpentine or Balsam 

 of Fir, a liquid oleoresin, obtained from the silver fir or balm of 

 Gilead ; a viscid yellowish liquid, drying on exposure into a trans- 

 parent mass. Soluble in ether, chloroform or benzol. 



The chief preparation used in veterinary practice js 



OLEUM TEREBINTHINAE— OIL OF TURPENTINE. 



Often but erroneously called Spirits of Turpentine; it is a 

 volatile oil, distilled from turpentine. This is the agent com- 

 monly meant by the unqualified word "turpentine." 



Characters. — A limpid, colorless liquid, of a peculiar, strong 

 odor and bitter pungent taste'; mixes with other volatile and 

 fixed oils, soluble i in 3 of alcohol, very soluble in chloroform 

 and insoluble in water. 



Dose. — Horse, as a diuretic 2 to 4 drs. repeated every 3 or 

 4 hours; as a carminative 1 to 2 ozs., as an anthelmintic 2 to 4 

 ozs. ; cattle, diuretic 3 to 6 drs. ; carminative 1 to 3 ozs. ; anthel- 

 mintic 3 to 6 ozs. ; sheep, 1 to 4 drs. ; dogs, 5 ms. to 3 drs. ; pigs, 

 1 to 3 drs. Best administered in 8 or 10 times its bulk of cotton 

 seed oil, linseed-oil, gruel or milk. Small doses as diuretics and 

 large doses as anthelmintics. 



Preparations : — 



einimentum terEbinthinaE — Turpentine Liniment. — Com- 

 posed of Resin cerate, 650 ; oil of turpentine, 350. 



oleum TEREbinThinae rectieicatum — Rectified OH of Tur- 

 pentine — This is a purified oil of turpentine ; it is a thin colorless 

 liquid, has the same properties as oil of turpentine and should 

 be the one used for internal use. 



Derivatives of Turpentine : — 



TEREbEnum — Terebene. — Made by the action of sulphuric 

 acid on oil of turpentine and by distillation. 



Properties. — A colorless or slightly yellowish, thin liquid, 

 having an agreeable, thyme like odor and an aromatic, somewhat 

 terebinthinate taste. 



