Excerpt from A System of Materia Medica and Pharmacy, Including Translations of the Edinburgh, London, and Dublin Pharmacopoeias The arrangement of the Materia Medica which I have followed, is that in which the individual substances are connected by their medi cinal relations, an arrangement which has some important advantages, and which presents its objects undera scientific form. The processes of Pharmacy] have considered in the order in which they are given in the Edinburgh Pharmacopoeia, to a translation of which] have added translations of the London and Dublin Pharmacopoeias, in the same order. The analogous processes in all of them are thus placed together, and a full view of Pharmacy, as regulated by the respective Colleges, is exhibited; while advantage is derived from the processes being compared. In an Appendix to the history of the Materia Medica at the end of the first volume, 1 have given a view of that arrangement, in which the substances belonging to it are classed according to their natural affinities. This, besides affording a contrast with the classification according to their medicinal powers, will be of some advantage to those attending my Lectures, and enable them to derive ist ance from the present publication as a text-book, as it an outline of the arrangement of the Course. By the aid of the Index, it is easy to render it subservient to this use. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.