Pharmacologia : or the history of medicinal substances, with a view to establish the art of prescribing and of composing extemporaneous formulae upon fixed and scientific principles; illustrated by formulae, in which the intention of each element is designated by key letters / by John Ayrton Paris.

Pharmacologia : or the history of medicinal substances, with a view to establish the art of prescribing and of composing extemporaneous formulae upon fixed and scientific principles; illustrated by formulae, in which the intention of each element is designated by key letters / by John Ayrton Paris. Credit: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.. Public Domain Mark