Chemical Essays, Volume 3

acid of vitriol affayed afhes alfo atmoſphere becauſe bitumens boiling burning calcined cauſe charcoal chimney circumftance colour condenfed confiderable confifts contained copper cubic foot cupel cupola furnace degree of cold degree of heat Derbyshire diffolved diftillation diminiſhed diſtance earth Effay eſcape evaporation experiment expofed expoſed faid falt fame fcoria feems feparated fhould fides filver fimilar fince fire firft firſt fituated flag fluid fmall fmell fmelting fnow folution fome foon fpar ftate ftone ftrong fubftances fubject fublimed fuch fufficient fulphur fuppofe furface glafs glaſs gold grees guaiacum half crown hundred weight increaſe inflammable inflammable air itſelf kind lefs litharge lofs loft maſs melted metals moſt muſt naptha obferved ounces Philof pieces pitcoal portion pounds prefent probably produced quan raiſed reaſon red lead refpect reſembles ſmall ſmelting ſtate Strabo tained thefe thermometer theſe tion tity Tranf uſe vapour veffel wood