506 VEGETABLE DEUGS 



strains, swelling of joints, and upon tlie chest. Burgundy 

 pitch, Canada turpentine, crude turpentine, Venice turpen- 

 tine, Bordeaux turpentine and Frankincense liaYe much the 

 same action and uses as oil of turpentine internally. They 

 are administered in the same manner and in nearly identical 

 doses, but are less commonly employed than the latter. 



Eesina. Eosin. (U. S. & B. P.) 



The residue left after distilling off the volatile oil from 

 turpentine. 



Synonym. — Colophony, resin, E. ; colophonum, P.G. ; 

 colophane, Fr.; kolophonium, geigenharz, G. 



Properties. — A transparent, amber-colored substance, 

 hard, brittle, pulverizable ; fracture glossy and shallow-con- 

 choidal ; odor and taste faintly terebinthinate. Spec. gr. 

 1.070-1.080. Soluble in alcohol, ether, and fixed or volatile 

 oils ; also in solution of potassium or sodium hydrate. 



Constituents. — Chiefly abietic acid anhydride (G^JI^fi^), 

 80-90 per cent. 



PKEPAEATIONS. 



Ceratum Besince. Resin Cerate. (U. S. P.) 

 Synonym. — Basilicon ointment. 

 Rosin, 350 ; yellow wax, 150 ; lard, 500. 



Ceratum Resinx Compositiim,. (U. S. P.) 



Contains oil of turpentine and linseed oil in addition to wax, lard 

 and rosin. 



Umplastrum Adhmsivum. Adhesive plaster. (U. S. P.) 

 Rubber, 30 ; petrolatum, 20 ; lead plaster, 960. 



Emplastrum Hesince. Resin Plaster. (B. P.) 



Unguentum Resinm. (B. P.) 



ACTION AND USES OF EOSIN. 



Eosin is a local stimulant and antiseptic externally. 

 The cerate is an excellent preparation for burns, wounds, 

 ulcers, and abraded surfaces. The fumes arising from 

 burning rosin (on a hot shovel) are said to be of value when 

 inhaled in chronic or subacute bronchitis. 



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