Raleigh, Sir Walter, portrait, 311; medical knowledge, 311; confection, 312 “Rational” formulæ, ii, 261 Read, Queen Anne’s oculist, ii, 14 “Receptarium Antidotarii,” 218 Recipe sign, origin, ii, 302 Red bottle, ii, 217 cloth as small-pox cure, 169, 186 precipitate, introduction, 105; used by Paracelsus, 243, 249; early references, 416; preparation, 416 Reduced iron, 404 Re’em, identity of, 29 Regenerated tartar, 371 Regulus of Antimony, 379 Renandot’s mercurial pills, 412 Rhazes, chemical writer, 105, 106; ointment, 407; pil cochiæ, ii, 152 Rheumatism, early treatment, 136 Rhizotomoi, 95 Rhubarb, first mention, 216 Ricinus, Biblical plant, 67; origin, ii, 92; in papyrus, 41. _See also_ Castor oil Ridge’s Food, patent, ii, 167 Rocha alum, 331 Roche’s Embrocation, patent, ii, 166 Rochelle salt, 372; first official, ii, 67; ii, 197 Rochester, Earl, as quack, ii, 203 Rock oil, 360. _See also_ Petroleum “Romeo and Juliet,” origin, ii, 77 “Rosa Anglicana,” 134 Rose water, Arabic origin, 103; early mention, 328 Rosemary, derivation, 296; properties, 296; Queen of Hungary uses, 297 Rosencreutz, 181 Rosetta stone, 35 Rosh, meaning, ii, 222 Rosicrucians, 181 Rouelle, French chemist, 277 Rousseau’s laudanum, ii, 144 Royal College of Physicians, incorporation, 143; dispensaries, 151, 156; prosecute an apothecary, 154; origin, ii, 60 Royal touch cures disease, 298; ceremony described, 304 Rufus pill, invention, ii, 140 Runge’s researches, ii, 263 Runstall’s Black Drop, ii, 145 S Sabor-Ebn-Sahel’s Pharmacopœia, 103 Saffron, called blood of Throth, 35; derivation, 72; Biblical reference, 72 St. John’s Wort, charm, 172 “Sal Admirabile,” 261 Sal Alembroth, 243, 417; etymology, ii, 279; ammoniac, discovery, 6; Glauber makes, 263; early reference, 334 Sal ammoniacum factitium, 336 de Duobus, 371; ii, 198; ii, 281 Enixon, 261 fixum, 335; ii, 298 Fossile, 369 Gemmæ, 369 Jovis, 425; ii, 311 Polychrestum, 369; Glaser’s, 371; ii, 198; Seignette’s, ii, 197; ii, 297 Prunella, how prepared, 368; why so-called, 369 Purgatorius, 220 sacerdotale, 220 sapientiæ, 417; ii, 279 viperum, 208 volatile oleosum, 336. _See also_ Salt _and_ Sel Salamanders’ Blood, ii, 298 Salerno Medical School, 115; dissolved, 117 Salia, ii, 298 Salicylic acid, synthetic, ii, 269 Salmon, W., note on, ii, 179; ii, 180 Salol, discovery, ii, 274 Salsa, ii, 119