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 predecessors. Among those who took an active part in its preparation were the President of the College, Dr. Plumptre, and Drs. Crowe, Mead, Heberden, and Freind. In the preface to this work the old "inartistic and irregular mixtures" and "the antidotes superstitiously and doatingly derived from oracles, dreams, and astrological fancies" are severely condemned, and the College declares its intention of freeing the book as much as possible from whatever remains of former pedantry. Notwithstanding these good intentions the old pharmacy is still abundantly represented. Crabs' eyes, coral, bezoar stones, harts' horns, woodlice, pearls, vipers, and skinks' bellies continue to figure among the simples, and formulas for Mithridatium with 45 ingredients, and for theriaca with 61 are likewise retained. On the other hand, human fat, unicorn's horn, mummy, spiders' webs, moss from the human skull, bone from the stag's heart, and lac virginale disappear. There are now 34 tinctures, while the medicated waters have been reduced to about 30 and the syrups to about 20. Tinctures of cummin, valerian, and cardamoms, syrup scilliticus, and pilula saponacea (soporific) are new; and lixivium saponarium (liquor potassæ), sal diureticus (potassæ acetas), causticum commune fortius (potassa cum calce), sal catharticus Glauberi, pilulæ mercuriales, and spiritus nitri dulcis make their first appearance.

The sixth P.L. (1788) proceeds on the same lines. The College claims to have paid special attention to the application of the advances of chemistry to pharmacy, and to have provided that very few traces of former superstition should remain. Mithridatium, theriaca, bezoar stones, vipers, and oil of bricks are dismissed, but woodlice remain. Materia medica synonyms are now