Rebus is the last matter of things.
Redue is a powder whereby calcined Metalls, and Mineralls are melted.
Regale is a Ciment whereby Gold is purged.
Regulus is the purest metalline part of any metall, or the purest part of a minerall, the feces being separated.
Relloleum is a vertue from the complexion, as in St. Johns-wort, the first vertue is in heat, and is healing, the other is accidentall, and occult, and is a preservative against worms, and corruption.
Repercussiva are medicines which drive back any flux.
Resina auri is a Crocus extracted out of Gold.
Resina terræ is Sulphur.
Resina terræ potabilis is sublimed Sulphur, brought into a liquor, balsome, or oyl.
Reverberatorium is a furnace in which the matter is calcined by a flame.