The extra pharmacopoeia / by William Martindale ... and W. Wynn Westcott.

  • Martindale, William, 1840-1902.
Date:
1901
Catalogue details

Licence: In copyright

Credit: The extra pharmacopoeia / by William Martindale ... and W. Wynn Westcott. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    18/724 (page 14)
    ijoutle). Hence approximately by gradation, omitting the affix ' -ful,' we should have— 85minims= 100gouts= 5 Cc.*= 1 teaspoon. 255 mimm3= 300 gouta=15 Co.*= I 3 teaspoons \ \ tablespoon. ( 12 teaspoons 1020 minim8 = ]200 gouts = 60 Co. =J 4 tablespoons ( 1 wineglass. i Ifi tablespoons (about), 250 Co. = 50 teaspoons =J 4 wineglasses, ( 1 tumbler. Of mobile liquids, such as Ether, Chloroform, Tincture of Digitalis, Almond Oil, and Oleic Acid, a drop is much smaller than that of water (varying, of course, with the neck of the bottle from which it is dropped). In the case of Oleic Acid, Almond, Olive, and other light oils, the 'drop,' on an average, weighs half a grain, and in place of weighing small quantities of these, we have recommended, for practical purposes, that two drops may be considered as the equivalent of one grain. The measure of 1,000 cubic centimetres recog- nised by the Pharmacopceia is not the same thing as a litre, which is the volume of 1,000 grammes of distilled water at its temperature of maximum density, 4° C. and 760 mm. barometric pressure (B.P. p. 430), whereas the measure of 1,000 cubic centimetres, B.P., is the volume occu- pied by 1,000 grammes of distilled water at 155° C, the diiTerence being that 1 cubic centi- metre is stated to be equal to 0-999S4 millilitre, a millilitre therefore equals 1-00016 Cc. In the operations of the Pharmacopoeia the volume of 1,000 grammes at 15-5°C. is directed to be employed in the place of the standard litre. We trust that our readers may soon be able to become familiar with the quantities and doses in terms of the Metric System, which it is hoped will, ere long, supersede the old system. Probably the greatest difficulty will be the introduction of conveniently-sized medicine bottles to contain * These quantities are respectively those recognised by the French Coclex for n tra'poondil and a lablespoonful.