Experiments and observations on a new species of bark, showing its great efficacy in very small doses : also a comparative view of the powers of the red and quilled bark ; being an attempt towards a general analysis and compendious history of the valuable genus of cinehona, or the Peruvian bark.

  • Kentish, Richard.
Date:
1784
Catalogue details

Licence: Public Domain Mark

Credit: Experiments and observations on a new species of bark, showing its great efficacy in very small doses : also a comparative view of the powers of the red and quilled bark ; being an attempt towards a general analysis and compendious history of the valuable genus of cinehona, or the Peruvian bark. 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.

    105/136 page 93
    Tin&ures of the bark have been long in ufe. The London Pharmacopeia orders four ounces of the bark to two pints of proof fpirit. The Edinburgh Difpenfatory orders the fame quantity of bark to two pints and an half of fpirit. Thefe are undoubtedly excellent preparations ; and if the red bark be ufed, the latter quantity of fpirit will be preferable. Some have thought to aflift the aclion of the fpirit by the addition of a little fixed alkaline fait, whilft others have added vitriolic acid; but we have already decried thefe notions. In the London Difpenfatory we have a tinclura corticis Peruviani volatilis, which is prepared by infufing four ounces of the bark with two pints of fpirit of fal am- moniac. “ This tincture,” fays Lewis, cc is ct but lightly impregnated with the virtues tc of the bark; and is fo acrimonious, that “ the largeft dofe which can with fafety he “ given of it, can contain only a very final] ft quantity of the fubje<ft. The medicine, “ neverthelefs, ” adds he, “ has its ufes, and cc may be ferviceable in fome cafes where “ the ftronger are improper, as in difficulty “ of breathing, obftruftions, and oppreffions “ of the bread. Stronger tinftures of this kind
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