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 one teaspoonful was to be taken in the morning, fasting, by epileptic subjects, for nine days consecutively.

An Arcanum Corallinum of Paracelsus which was included in some of the earlier London Pharmacopœias, was simply red precipitate prepared in a special manner. The Committee of the College of Physicians which sat in 1745 to revise that work rejected this product with the remark that an arcanum was not a secret known only to some adept, but was simply a medicine which produces its effect by some hidden property. (This might be said of many medicines now