Pil. Cochia originated with the Greco-Roman physicians, from Galen onwards, and all the formulas for it associate aloes with a more drastic purgative such as colocynth, which is the usual ingredient. The term, however, did not come into use until about the seventh century, and according to some authorities it was first formally adopted by Rhazes, the Arab. The predecessors of our pills were called “katapotia,” which meant things to be swallowed, and the earlier prescribers directed katapotia of such a size. Celsus, for example, orders katapotia of the size of an almond, of an Egyptian bean, and so on. Subsequently as patients became more fastidious they were humoured by the doctors, and katapotia of the size of a coccus, which was a lentil berry, were prescribed. Coccion meant a diminutive coccus, and as the pill of aloes and colocynth was frequently prescribed in this way the term came to distinguish those pills particularly. Paul of Ægina’s formula (sixth century) ordered aloes and colocynth pulp, and extract of wormwood, of each one part, with scammony two parts. To be made into pills of the size of a coccus. Eleven were to be taken for a dose. The early London Pharmacopœias contained formulas for pilulæ cocciæ majores, from Rhazes, and pilulæ cocciæ minores, from Galen. Only the latter survived. In the P.L., 1746, the name of Pilulæ cocciæ minores was changed to Pilulæ ex Colocynthide cum Aloe, and the formula ordered Socotrine aloes and scammony, of each 2 oz.; pulp of colocynth 1 oz.; oil of cloves, 2 drachms. PLUMMER’S PILLS. Pil. Calomel. Co. originated from a formula devised by Dr. Andrew Plummer, Professor of Chemistry in the University of Edinburgh in the middle of the eighteenth century. Dr. Plummer first published his formula in the “Edinburgh Medical Essays,” 1751. It was only a slight modification of the Pilulæ Æthiopicæ which were already official in the Edinburgh Pharmacopœia. These were originally a combination of Ethiops Mineral with the golden sulphide of antimony, but the Edinburgh College had substituted calomel for the former. AMMONIATED TINCTURE OF QUININE. Under this name Mr. Joseph Ince recorded in the _Pharm. Journ._, June 13th, 1874, that a preparation was made and called by this name which was a solution of 1 grain of sulphate of quinine in one drachm of compound spirit of ammonia. This did not meet with general approval, and in 1853 Mr. Bastick proposed an Ammoniated Solution of Quinine made by dissolving 32 grains of sulphate of quinine in 3½ ounces of proof spirit and ½ ounce of solution of ammonia. The present B.P. tincture contains less ammonia, and alcohol is employed instead of proof spirit. COMPOUND SOAP PILLS.