230 
Petroleunft 
Maltha. 
Mumia. 
INFLAMMABLES. 74. Bitumen. 
Liquid, but of a thicker confiftence than the laft and n®* 
fo tranfparenr, coloured. 
Bitumen litjnidiufc. Syft. nat, xli. 3. /. 109. ». 2. 
Bitumen craflius. Wall.fpt 2. p. 90. 
Oleum montan. luteuni. VVollerfd. min. 24. 
Petroleum. C^onti, min. feil. 147. z* 
Rock oil. Berkenhoft outl. p. 257. 
Rock oil. Schmeiffer mineral. 1. p, 286. 
Petrol. Kimvan mineral, z. p. 47* 
Petroleum. Tibontjin chem. if, p.t). 
Pound on the I’urface of certain fprings in Perfia, Media, 8® | 
Siberia, or in coal-mines or oozing out of rocks and miner** 
beds in various parts of Great-Uritain and Europe in general - 
it is of a thicker conillt. nee than naphtha and a rather k*® 
pleafant fmell, is lighter than water, but heavier than alco- 
hol : colour yellow, or with a fliade of red or green, of 
brownifh or blackilh : when burnt it yields a foot, and learc* 
a fmall quantity of coaly refiduum ; fpecific gravity 8783- 
By expofure it becomes of the confiftence of treacle. 
Infpiflated, black, flicking to the fingers. 
Bitumen tenax. Syji xii. 3. p. 1 10. a. 3, 
E'ttimen craiTum. PVall. fyft. 2. /. 92. « 3. 
Oleum montan. tenax. Wolterfd. min. 24. 
Petroleum tenax. Cronft. miner, fedi. 148. 
Mineral Tar, Barbadoes Tar. Kirnuan 2. p, 46, 
Tar. SchmeiJJer miner l.p. 287. 
Mineral Tar. Phomfon chem. 4. p. 9. 
Found in Colehrook dale and other coal counties in Britatft 
fonn times floating on lakes in Palefiine, Babylon, Arahf^t 
Perlia, China. Barbadoes, and various parts of Europe, 
frequently ifl'uing from rocks : is of the confluence of treackt 
of a blickilh-brown colour, opake, and has a very flrong 
fmell when burnt : it Teems to have its origin from the forrn^'' 
tpecies, which by longexpofure to the air, has loft it? volat'*® 
particles, and obtained a thicker confiftence : fpecific gt*' 
vity 1,1. 
Black, inodorous, fofteniiig in a low heat. 
Bitumen fubfriabile. Syft. nat. xii. 3. p, 1 10. ». 4. 
Mumia mineralis. Hajfelq. it. 537. 
Miimia nativa. Krempf. amaen. exot.fafc, z, /.430. 
Maltha. Kirwan mineral. 2. p. 44. 
Mineral Mummy. Schmeijjer min. 1. p. 291. 
Mineral pitch. Thomfon chem. 4. p. lo. 
Found in Perfta, in the clifts of rocks at on the rh* 
Cauca/us, and is faid to have been difeovered in Lancafiif^* 
colour blackifli-brovvn, fofc and tough like coblet’s wax wM _ 
the weather is warm, but brittle like pitch in cold weaths^' 
