The extra pharmacopœia of Martindale and Westcott.

  • Martindale, W. Harrison (William Harrison), 1874-1933.
Date:
1904
Catalogue details

Licence: In copyright

Credit: The extra pharmacopœia of Martindale and Westcott. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    up of burdening the prescriber with metric equivalents to grains, drachms and ounces should be dropped in favour of metric terms only, which entail far less mental calculation, and hence involve very much less likelihood of ern.r. The sizes of bottles in most frequent use in France are: - 1,000, 500, 250, 200, 125, 100, 50 and 25 cubic centimetres. Mixtures may be prescribed in 125, 200, or 250 Cc, or where it is desired to prolong the treatment 500 Cc. is a convenient size; and drops should be ordered in quantities of 60, 30, and 15 Cc. METRIC WEIGHTS AND MEASURES AND THEIR EQUIVALENTS IN THE BRITISH PHARMACOPCEIA. 1 Gramme (Gm.) = 15'-1323564 grains. 1 Centigramme (Cgm.) = (V154323 grain. 1 Milligramme (Mgm.) = 0-015432 grain. 1 Litre = 35*196 fluid ounces. 1 Cubic Centimetre (Cc.) ... = 16'95 minims (nearly). Metre = 39 370113 inches. The Graiu?ie hasits decimal multiples—Decagramme, Hecto- gramme, and Kilogramme ; and divisions—Decigramme, Centi- gramme, and Milligramme. The Litre and Metre have their corresponding decimal divisions—Decilitre, Centilitre, and Millilitre,—and Decimetre, Centimetre, and Millimetre. In Continental states, where this system is now generally adopted for the dispensing and preparing of medicines, ail liquids are weighed, and the terms Gramme, Centigramme, and Kilogramme only are used. This avoids the possibility of errors, which the similarity of the names Decagramme and Decigramme might lead to. In Germauy the quantities of the ingredients in prescriptions are written in decimal proportions, the gramme being under- stood to be the unit; the name of the integer is generally not mentioned, thus: Rhubarb 35 means 35 grammes of Rhubarb. , ,, '035 ,, 35 milligrammes