The cat has been largely used in medicine. Galen recommends the head of a black cat to be burned in a glazed vessel, and the ashes to be used in diseases of the eye, including cataract. Pliny says that the fæces of this animal mixed with mustard cured ulcers in the head. Sylvius prescribed cats’ flesh for hæmorrhoids and lumbago. In Lemery’s “Pharmacopœia” a cat ointment is ordered. It was to be made from a newly born kitten cut up into small pieces in a pot varnished with crushed earthworms. Cats’ fæces were employed in the eighteenth century as an application for baldness, and cat’s skin was recommended to be worn over the stomach for strengthening the digestion. Montaigne states that in his time physicians prescribed as choice remedies the left foot of a tortoise, the liver of a mole, and blood drawn from under the wing of a white pigeon. Queen Anne’s “Oculist and Operator on the Eyes in Ordinary,” a quack named Read whom she knighted, comments in his writings on the practice of putting a louse in the eye when it is dull and obscure and wanteth humours and spirits. This, he says, “tickleth and pricketh so that it maketh the eye moist and rheumatick and quickeneth the spirits.” Oil of ants made by pounding two ounces of live ants and macerating them in eight ounces of olive oil for forty days was used as a stimulating liniment. Oil of spiders and earthworms was prescribed by Mindererus for anointing in small-pox and plague. He recommended it as being equal to the oil of scorpions, which was a very complicated combination of drugs devised by Matthiolus. Spiders have been often employed in medicine. A live spider rolled up in butter and swallowed as a pill was a seventeenth century cure for jaundice. Spiders taste like nuts, says Lalande. Galen recommended spiders’ eggs mixed with oil of nard for toothache. Elias Ashmole in his “Diary” (1681) writes: “I took early in the morning a good dose of elixir and hung three spiders about my neck, and they drove my ague away. Deo gratias.” Spiders’ webs were frequently used as a febrifuge, and are well-known to be excellent to stop bleeding. Oil of lizards, twelve of them cooked alive in three pounds of nut oil, was esteemed a good application against hernia. Oil of frogs prepared in a similar way was applied to the temples to promote sleep. BEZOAR STONES. Bezoar stones acquired their fame in the East, and were introduced to European medicine by the Arabs. The name is of Persian origin, Pad-zahr, meaning an expeller of poisons. The earliest reference known to Bezoar stones in Europe is by Avenzoar, an Arab physician who practised in Seville about the year 1000. They were included in the London Pharmacopœias from 1618 to 1746.