Excerpt from An Aid to Materia Medica The changes in the Pharmacopoeia of 1890 (first published late in 1893) have made necessary a complete revision of this book. Many additional drugs and preparations have become official, while others have been dismissed. Changes in the strength and composition of various medicines have been made, the list of the more important of which will be found in the appendix. There have also been added to this edition sev eral brief chapters and tables, which it is hoped may be useful, e. G. Rules for the dosage of medi cines in childhood; the natural orders of drugs; the percentage of alcohol in various unofficial wines, liquors, etc.; a list of the more important new remedies; some dangerous abbreviations in prescription-writing an article on incompatibility etc. 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.