Experiments on the red and quill Peruvian bark: with observations on its history, mode of operation, and uses; And on some other Subjects connected with the phenomena and doctrines or vegetable astringents. Being a Dissertation Which gained the First Prize given by the Harveian Society of Edinburgh for the year 1784.

BY Ralph Irving.

Omnes enim traliimur ct ducimur ad cognitionis et fcientiz cupiditatera. Cicero de Offidis.

Edinburgh: Printed For C. Elliot, Edinburgh; G. Robinson, London; And W. Gilbert, Dublin. MDCCLXXXV.