PITCH, TAR, TURPENTINE, ETC. 189 



taste ; slowly drying on exposure, and then forming a 

 transparent mass ; completely soluble in ether, chloro- 

 form, or benzol. Dose same as terebinth ina. 



T^rehinthina Veneta, Venice turpentine, from the 

 common larch — Larix Europoea. Is a tenacious, 

 slightly opaque, thick, pale-yellow liquid, of an acrid, 

 bitter taste, and a disagreeable terebinthinate odor. 

 Dose same as terebinthina. 



Prbpakations of Turpentine. — Oleum Terebin- 

 thince, oil of turpentine, commonly known as spirits 

 of turpentine, a volatile oil, distilled from the differ- 

 ent varieties of turpentine. A thin, colorless fluid, 

 of a characteristic odor and taste, becoming stronger 

 and less pleasant by age and exposure to air, and of a 

 neutral or faintly acid reaction. Specific gravity 

 0.855 to 0.870. Soluble in 6 parts of alcohol, miscible 

 with fixed and volatile oils, dissolves resins, wax, 

 sulphur, and phosphorus. Bromine and iodine act 

 violently upon it, and it takes fire when in contact 

 with a mixture of HNO3 and H^SO,. 



Oleum TerehinthincB Bectificatum, rectified oil of 

 turpentine, is the preparation of the oil suitable for 

 internal use. Dose : as stimulant and antispasmodic, 

 H. and C, fl. § ss.-ij. ; D., nixx.-fl. 3 i. ; as diuretic, 

 H. and C, fl. 3 ij.-viij. ; D., Hlx.-xv. ; as cathartic 

 and anthelmintic, H. and C, fl. §ij., with aloes in 

 solution, linseed oil, gentian, or quassia. 



Oil of turpentine must be given always diluted 

 with some bland liquid, such as linseed tea or oil, 

 milk, gruel, etc. 



Oleum Nigrum, black oil. Consists of oil of tur- 



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