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864 BITUMINOUS FAA1ILY. pact brown ironstone, cellular quartz, and straight la mellar heavy-spar. It is also met with at Nordberg and Dannemora in Sweden; Morsfeklt in the Palatinate; in the quicksilver mines of Deux Fonts; in Salzburg ; Switzerland, Avlona in Albania; and Semenowa in Russia. Asia.—I n the Mountains of Caucasus; in Lake As- phaltes in Judea; Uralian Mountains. America. Mexico. In the Island of Trinidad, there is a lake three miles in circumference, covered with a bi tuminous substance, of the nature of slaggy mineral pitch. Uses. The Egyptians employed it in the process of embalm ing bodies *. The Arabians still use a solution of it in oil to besmear their horse harness, to preserve it from in sects. I he ancients also used it as an ingredient in mor tar ; and it is said that the walls of the famous city of Babylon were built with a mortar of this kind. The German translator of J. Bar. de Vignola’s Civil liaukumt, observes, “ I may here also remark, that we find in the accounts of travellers that buildings are often constructed with pitch ; and that Peter de Val mentions, that he ex amined \ ery old buildings, the stones of which were ce mented by means of mineral pitch, and which were still very firm, and in good order.” Klaproth says, that the slaggy mineral pitch of Avlona burns with a strong and O lively • Rouelle concludes, from experiments which he made on mummies, tint the Egyptians employed slaggy mineral pitch in embalming the dead. Thi* operation was performed in three different ways: the first with slaggy mineral pitch alone; the second with a mixture of this bitumen, and a liquor extracted from cedar, called, Ccdi-ia ; and the third with a similar mixture, to which resinous and aromatic substances were added 7/aay, Mineralog. t. ii- p. 31 o, 316. *