The physicians of Myddvai : Meddygon Myddvai, or The medical practice of the celebrated Rhiwallon and his sons, of Myddvai, in Caermarthenshire, physicians to Rhys Gryg, lord of Dynevor and Ystrad Towy, about the middle of the thirteenth century / From ancient mss. in the libraries of Jesus College, Oxford, Llanover, and Tonn; with an English translation; and the legend of the lady of Llyn y Van ; translated by John Pughe and edited by the Rev. John Williams ab Ithel. Pub. for the Welsh mss. society.

Date:: 1861

Credit: The physicians of Myddvai : Meddygon Myddvai, or The medical practice of the celebrated Rhiwallon and his sons, of Myddvai, in Caermarthenshire, physicians to Rhys Gryg, lord of Dynevor and Ystrad Towy, about the middle of the thirteenth century / From ancient mss. in the libraries of Jesus College, Oxford, Llanover, and Tonn; with an English translation; and the legend of the lady of Llyn y Van ; translated by John Pughe and edited by the Rev. John Williams ab Ithel. Pub. for the Welsh mss. society. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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WEIGHTS AND MEASURES. The following exhibits the weights and measures, wliich every Physician should employ, so that he may know cer- tainly what proportions to use, when necessary. Weights and measures of propor- tion. XX grains of wheat make one scruple. tit scruples make one dram. * * * DUj drams make one ounce. Xl| ounces make one pound. And thus are they written in the Books of Physicians.* A grain thus q A scruple thus 9 A dram thus ^ An ounce thus ^ A pound thus S And thus are they arranged in accordance with these characters. XX q to 9 iij 9 to ^ nil] i) to ^ xij f to s Fluid or liquid measures are arranged thus. Four podfulls make one spoonful. Four spoonfuUs make one egg- shellful. Four eggshellfulls make one cup- ful. Four cupfuUs make one quart. Four quarts make one gallon. Four gallons make one pailful. Four pailfuUs make one grenn.f Four grenns make one mydd. Four mydds make one myddi (or hogshead.) Even so are fluid and liquid measures arranged. The following are other measures noted by Physicians :— Two eggshellfulls make half a pan. Two halfpans, a pan. Two pans, a phioled. Two phioleds, a cupful. Two cupfuUs, a quart. All the measures of solids and fluids should be of warranted weight and measure, so that they may afford warranted and just in- formation, in order that the me- dicines administered to the sick may neither be ineffective nor poisonous, and that every dose may be of the proportion intended. The following are conjectural measures, dependent upon the Physician's judgment. Four grains of wheat, one pea. Four peas, one acorn. Four acorns, one pigeon's egg. Four pigeon's eggs, one lien's egg. Four hen's eggs, one goose's egg. Four goose's eggs, one swan's egg- * Those signs are now thus written: Grain (?)•. Scruple 9. Dram 5. Ounce 5, Pound lb. f A large earthen vessel.'' W. O. P.

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