An experimental examination of the last edition of the Pharmacopoeia Londinensis; with remarks on Dr. Powell's translation and annotations / [Richard Phillips].

  • Phillips, Richard, 1778-1851
Date:
1811 [1812?]
Catalogue details

Licence: Public Domain Mark

Credit: An experimental examination of the last edition of the Pharmacopoeia Londinensis; with remarks on Dr. Powell's translation and annotations / [Richard Phillips]. Source: Wellcome Collection.

    11/160 (page 3)
    In the directions for preparing those compounds of mercury occupying the place to which, according to the arrangement adopted, they properly belong, this fluid metal is invariably directed to be weighed *, libra being, as in the case of the sulphuric acid just noticed, preceded by pondere; it must therefore be considered as subject to the general rule directing the measurement of fluids, although it is in no one instance clearly directed to be measured. In the following preparations of mercury not arranged with Pneparata ex Hydrargyro, viz. Pilule Hydrargyri, Emplastrum Ammoniaci cum Hydrargyro, Emplastrum Hydrargyri, Unguentum Hydrargyri fortius, Unguentum Hydrargyri Nitratis, the word libra is not accompanied by pondere, nor yet uncia or drachma by fluid ; it was therefore questionable whether the mercury is to be weighed or measured ; this difficulty was however removed by the fortunate expedient of referring to the 44 Tabula,” and from the quantity of mercury which a given portion of the Pilule Hydrargyri is intended to contain, it appeared that the mercury in this case, and probably in all the remaining doubtful cases, is to be weighed. The following are the instances, in addition to that already noticed, in which the quantity of fluid intended to be employed is undiscoverable, because not expressed according to either of the methods previously adopted. SOM SUBCARBON AS. ...... Plec vaporet ad libras duas, LIQUOR CUPRI AMMQNIATI. .. Aque distillate libram \ .. ; ' LIQUOR PLUMBI ACETATIS* ...... decoque ad libras sex,.. A 2