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according acid acid of vitriol action alkali alſo appear aſhes attract become bodies boiling called charcoal chemical chemiſtry cold collected colour common conſiſts conſtituent contained continue copper countries cryſtals degree of heat diffolved diſtillation earth effect England equal evaporated experiment extracted faline falt fire firſt fixed alkali fluid freezing gold greater green gunpowder heat hence iron itſelf kelp kind known lead leſs light manner matter means melted mentioned metallic mineral mines mixed mixture moſt muſt nature nitre obſerved obtained ounces particles phlogiſton plants portion pounds preſent principle probably procured produced proper pyrites quantity quickſilver reader remain ſaid ſaline ſalt ſaltpetre ſame ſeems ſeparated ſeveral ſhould ſince ſolution ſome ſtate ſub ſubject ſubſtances ſuch ſulphur ſurface theſe thing thoſe tion uſe various vegetable veſſel vitriol volatile weight wine wood
Page 12 - And he took the calf which they had made, and burnt it in the fire, and ground it to powder, and strawed it upon the water, and made the children of Israel drink of it.
Page 32 - Cornwall, which he calls the mineral fchool, owning that from a teacher, he was there become a learner. He was the author .of many improvements in the manner of working mines, and of fluxing metals; in particular he firft introduced into Cornwall the method...
Page 168 - ... the support of fire in other bodies : the sulphur from which it was procured was capable of both. There is a remarkable difference, then, between the acid procured from the sulphur and the sulphur itself. The acid cannot be the only constituent part of sulphur: it is evident that something else must have entered into its composition, by which it was rendered capable of combustion.
Page 65 - The term alembic or alambic, is compounded of the Arabic particle al (the), and the Greek word ambix, a kind of cup or cover of a pot ; it is now ufed to denote the whole of a certain diftilling apparatus ; it formerly denoted only one part of it, namely the head, or that part in .which the diftilled matter was collected. Diofcorides is thought by Suidas, to have been phyfician to the celebrated Queen Cleopatra ; he certainly knew the manner of fubliming quickfilver from its ore.
Page 158 - Do not bodies and light act mutually upon one another; that is to say, bodies upon light in emitting, reflecting, refracting and inflecting it, and light upon bodies for heating them and putting their parts into a vibrating motion wherein heat consists?
Page 8 - The art of making wine indeed, was known, if not before, foon after the deluge; this may be collected from the intoxication, of Noah||, there being no inebriating quality in the unfermented juice of the grape. The Egyptians were...
Page 43 - ... and a great variety of others, have received much improvement from chemical inquiry, and are capable of receiving much more. Metallurgy in particular, though one of the moft ancient Branches of chemiftry, affords matter enough for new new difcoveries.
Page 43 - There are many forts of iron and copper ores which cannot be converted into malleable metals, without much labour, and a great expence of fuel; it is very probable, that by a well-conducted feries of experiments, more compendious ways of working thefe minerals might be found out.
Page 26 - He treated the physicians of his time with the most sottish vanity and illiberal insolence, telling them, that the very down of his bald pate, had more knowledge than all their writers ; the buckles of his shoes more learning than Galen or Avicenna, and his beard more experience than all their universities*.
Page 39 - ConConfidered as a branch of phyficks, chemiftry is but yet in its infancy : however, the mutual emulation and unwearied endeavours of fo many eminent men as are in every part of Europe engaged in its cultivation, will in a little time render it equal to any part of natural philofophy, in the clearnefs and folidity of its principles.