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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. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.