A universal formulary : containing the methods of preparing and administering officinal and other medicines : the whole adapted to physicians and pharmaceutists / by R. Eglesfeld Griffith.

  • Griffith, R. Eglesfeld (Robert Eglesfeld), 1798-1850.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: A universal formulary : containing the methods of preparing and administering officinal and other medicines : the whole adapted to physicians and pharmaceutists / by R. Eglesfeld Griffith. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    A UNIVERSAL FORMULARY. INTRODUCTION. Before entering upon the main object of the work, some introductory observations are required, on the forms in which remedial substances are administered, the processes to be pursued in their preparation, and on the weights and measures emploj^ed in the proper apportionment of the iagre- dients, and in the regulation of the doses to be administered. WEIGHTS AND MEASURES. These vary much in different countries, and even in the same country. Thus, in Great Britain and the United States, there are three standards of weight recognized and employed: the Avoirdupois, the Troy, and the Apothecaries'. Weights of the United States and Great Britain. Avoirdupois Weight. This is the common standard employed in the selling or buying of such articles as are measured by weight, and is also in use among apothecaries in this country, except in the compounding and dispensing of medicines. Equal to troy grains. 1 drachm 27.34375 16 = 1 ounce 43T.5 256= 16= 1 pound 7000. 3584 = 224 = 14 = 1 stone 98000. 28672= 1792= 112= 8= 1 hundred weight 784000. 473440 = 35840 = 2240 = 160 = 20 = 1 ton 15680000. In weighing many articles, what is called the short ton, or 2000 pounds, is employed. Trot Weight Is used in the sale of gold, silver, platina, and precious stones. 1 grain 24 = 1 pennyweight 480 = 20 = i ounce 5760 = 240 = 12 = 1 pound. The following are the relative proportions between the troy and the avoirdupois:— One pound troy is equivalent to 0.822857 pound avoirdupois, or 13 ounces, 2 drachms, 1 scruple, 8.7 grains. [13 ounces, 72.5 grains.] One ounce troy is equivalent to 1 ounce, 1 drachm, 1 scruple, 6.225 grains avoirdupois.