Copy 1

A translation of the pharmacopoeia of the Royal College of Physicians, of London. 1824. / With notes and illustrations. By Richard Phillips.

  • Royal College of Physicians of London.
Date:
1824
Catalogue details

Licence: Public Domain Mark

Credit: A translation of the pharmacopoeia of the Royal College of Physicians, of London. 1824. / With notes and illustrations. By Richard Phillips. Source: Wellcome Collection.

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    We have added the signs by which we designate every measure. * Care is to be taken, that neither copper nor lead enter into the composition of the substances of which mor- tars, measures, funnels or other vessels are made, in which medicines are either prepared or kept; on this account earthen vessels glazed with lead are improper. Acid, alkaline, earthy and metallic preparations, and also salts of every kind, ought to be kept in stopped glass bottles. We measure the degree of heat by Fahrenheit’s thermo- meter, and when we direct a boiling heat, we mean that of 212°. A gentle heat denotes a temperature between 90° and 100°. Whenever specific gravity is mentioned, we suppose .the substance treated of to be of the temperature of 55°. A water bath is that by which any substance contained in a proper vessel is heated, either by immersion in boiling water, or by exposure to steam. A sand bath is made of sand to be gradually heated, in which any thing is placed contained in a proper vessel. _ * That error may not arise from the indiscriminate use of the same terms to denote both weights and measures, we have, after delibera- tion, devised certain new ones, which a little practice render familiar. : We also measure the smallest portions of fluids in a glass measure, marked at equal distances ; for the number of drops is fallacious and uncertain, since it requires nearly twice as many drops of any tinc- ture, as it does of water, to fill the same measure. moenhonl » Mate: