Volltext Seite (XML)
( 356 ) II. BITUMINOUS FAMILY. This Family contains the following species, viz. Naph- tha, Mineral Oil or Petroleum, Mineral Pitch or Bitu men, Brown Coal, and Black Coal. 1. Naphtha. of the ancient Greeks. Vid. Pliri Hist. Nat. t. ii. (ed. Bip. 1. p. 198.)—Bitumen candidum■? Plin. Hist. Nat. xxxv- (ed. Bip. v. p. 324.)—Bitumen Naphtha, Wall. Syst. Min. t. ii. p. 98.—Naphte, Rome de L. t. ii. p. 192. Id. Dc Born, t. ii. p. 75. Id. Wid. s. 617. Id. Kinv. vol. p. 42.—Bi- tumine liquide blanchatre, Hauy, t. iii. p. 312.—Le Naphte, Brock, t. ii. p. 59.—Naphtha, Reims, b. iii. 3. s. 96.—Bitume Naphte, Brong. t. ii. p. 19-—Naphtha, Leonhard, labcl- / s. 48.—Liquides Bergol, Karsten, Tabel. s. 58—Naphtha, Hauy, s. 117- Id. Kid, vol. ii. p. 61. Id. Lenz, b. ii. s. 1045- Id. Aikin, p. 3. External Character Its colours are yellowish-white, yellowish-grey, and wine-yellow. It is perfectly fluid. It is shining and resinous. It feels greasy. ' It exhales an agreeable bituminous smell. Specific gravity, 0.7. Chemical Characters. It takes fire on the approach of flame, affording a bright white light. Constituent