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.

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    aj % of k nd UlS- ids )ne :ed. A ♦ :ot jfes nay lent i >1 if no or pi B) I • [ IOI ] animal and vegetable kingdoms. Of many vegetables it is a neceflary pabulum vita:; without it they pine, wither, debilitate and die: yet no one has ftyled this a tonic power. It is called a ftimulant, and faid to operate by its ftimulating powers. Are we then to forfake philofophy ? Are we to admit di- verfity of effects from the fame caufe ? or rather, are we to admit one uniform caufe, producing the fame effects ? The diftin£tion into tonics and ftimulants may be made by thofe who love divifion, for the fake of fubtility ; but true philofophy defpifes what mifleads the mind: and when I fay a glafs of wine Simulates a man to a6tion, I mean the fame as if I faid it increafed his tone or power of aclion at the time. If a known ftimulus produces the fame effe6l as a tonic, I have reafon to conclude, it does it in the fame manner. Is not this argument fupported by juft reafoning and true logic ? To reafon otherwife, is to reafon falfely; and to forfake reafoning in phylics, is to make medicine rafh empiricifm. Additional arguments might be brought to fupport my opinion, and I could add weight to my fuppofition from analogy. Wherever the bark is required,
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