"The natural principles in the mines are mercury and sulphur. All metals and minerals whereof there be sundry and dive…"

"If you prudently desire to make our elixir, you must extract it from a mineral root. For as Geber saith, you must obt…"

"Volcanic ash, despite the name, is dense as rock and can cause significant damage to structures, power lines and comm…"

"'isn't it brimstone morning?' 'I forgot, my dear,' rejoined Squeers; 'yes, it certainly is. We purify the boys' blood…"

"Proposals for chemical weapons that arose during the American Civil War are described. Most incendiary and all biolog…"

"From this theoretical structure of nature evolved the assumptions upon which alchemy was based: the unity of the univ…"

"...let us rather choose Arm'd with Hell flames and fury all at once O're Heav'ns high Towrs to force resistless way, …"

"The crude sulphur found in Sicily and other places is heated in pots, whereupon the sulphur melts and floats on the s…"

"In some parts of the East, sulphur is separated from the earthy matter wherewith it is mixed in the soil, by heating …"

"There are several ways of performing Tas'id, (a rising up) in the (the sublimatory apparatus), and the substances whi…"