206 IV. OILY COMPOUND COMBUSTIBLES— 



Olampi gum, Gummi olampL Of unknown origin. From 

 America. 



Burgundy pitch, White pitch, Pix Burgiindica, Pix alba^ 

 jResina ahietis humida, Resina alba humida, Pini ahietis resina 

 sponte concreta^ Pix arida, P. L. 1809, Pix ahietina. By incision, 

 from Pinus abies, becomes solid immediately : it is melted with 

 water and strained through coarse cloths : of a close consistence, 

 rather soft, reddish brown, smell not unpleasant : very adhesive 

 to the skin, rubefacient, used in colds, and short breath. From 

 the North. 



Fir Yio?>\^, Per-rosin, Frankincense^ Thus fcemininum^ T. md- 

 gare, Olihanum vidgare, Resina ahietis sicca, Ahietis resina, L. P. 

 since 1809. Exudes from Pinus abies, compact, opaque, deep 

 yellow ; not so adhesive as Burgundy pitch, sold for incense, 10^. 

 the lb. 



Native Rosin, Resina pini nativa. Exudes from Pinus syl- 

 vestris, the turpentine drying upon the wound, and forming a 

 white crust over it. 



White rosin, Resina pini communis, Resina alba, P. D. and 

 P. E. Prepared from native rosin by melting and straining 

 through a cloth ; used indifferently with Burgundy pitch ; ad- 

 heres to the fingers. 



Barras, Galipot de Bordeaux. Exudes from Pinus maritima; 

 yields by distillation huile de raze. 



American elemi. Exudes from Pinus palustris. 



Gum SANDAiiACH, Gum Juniper, Sandaraca, Gummi juniperi. 

 Yielded by the Thuya articulata, and T. quadrivalvis, astringent 

 and tonic, used also in making varnishes, and in powder, pounce, 

 to prevent ink from sinking in parchment, bad paper, or where 

 they have been scraped. 



Dragon's blood in the tear, Sanguis drarouls in lacrymis. 

 From the Dracaena draco, by incision ; very puie, used in 

 varnishes and dentifrices ; powder a bright red, cinnabris. — 

 Dragons blood in sticks, Sang. drac. in cannis, Ptei'ocaipi draconis 

 resina. From Pterocarpus draco, P. Indicus, and P. santalinus. 

 In small masses, wrapped in leaves, dark red, breaks smooth ; 

 powder crimson. From the East Indies. — Dragons blood in 

 halls. Sang. drac. in placentis. Obtained by macerating or steaming 

 the fruit of the Calamus draco; in round masses wrapped up in 

 leaves of reeds, coarse grained ; powder brownish red. Are all 

 astringent. Used in tooth-powders, and to stain marbles red. 

 From the East Indies. — Surinam dragons blood. From Dahl- 

 bergia monetaria. 



Gum s tor ax, Red storax. Thus Judceorum, Sty rax in massis, 

 S. rubra, Stgracis balsamum, Balsamum styracis officinalis. Ob- 



