volatile Salts; yet questionless there is a great disparity betwixt such Salts and that which we have sometimes obtain’d upon the first Distillation of Soot (though for the most part it has not been separated from the first or second Rectification, and sometimes not till the third) For we could never yet see separated from Woods analyz’d only the vulgar way in close vessels any volatile Salt in a dry and Saline form, as that of Soot, which we have often had very Crystalline and Geometrically figur’d. And then, whereas the Saline parts of the Spirits of Guajacum, &c. appear upon distillation sluggish enough, the Salt of Soot seems to be one of the most volatile Bodies in all Nature; and if it be well made will readily ascend with the milde heat of a Furnace, warm’d only by the single Wieck of a Lamp, to the top of the highest Glass Vessels that are commonly made use of for Distillation: and besides all this, the taste and smell of the Salt of Soot are exceeding differing from those of the Spirits of Guajacum, &c. and the former not only smells & tastes much less like a vegetable Salt, than like that of Harts-horn, and other
