The pharmacopoeia of the Royal College of Physicians of London, MDCCCIX / Translated into English with notes, &c. by Richard Powell.

  • Royal College of Physicians of London.
Date:
1809
Catalogue details

Licence: Public Domain Mark

Credit: The pharmacopoeia of the Royal College of Physicians of London, MDCCCIX / Translated into English with notes, &c. by Richard Powell. Source: Wellcome Collection.

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    so very variable, that it could not be applicable undei any al- teration of circumstances, and therefore it seemed better to omit it altogether*. I subjoin theiollowing table of proportions as was done to weights. . Pint. Fluidounce. Fluidrachm. Minim. 1 = 16 = 128 = 7680 1 = S = 480 1 = 60 In addition to this explanation it is further to be observed, that in this book we define the quantity of dry articles by weight, and that of liquids by measure, unless it be other- wise expressed. Care is to be taken that neither copper nor lead enter into the composition of the substances from which mortars, measures, funnels, or other vessels, in which medicines are eitlier prepared or kept, are made. More- over, vessels of earthen-ware whose surfaces are glazed by lead are improper. This injunction is repeated from the former Pharmacopceia, and extended stili farther to a prohibition of those vessels whose surfaees are covered with a glaze of lead. In many instances the reduction of substances to powder requires mortars to be used of large size, and sufficient strength to * A useful pamphlet uponthis sulject has bcen published by Mr. Shuttleworth of Liverpool.