Excerpt from Epitome of the Pharmacopeia of the United States and the National Formulary, With Comments: Prepared for the Use of Physicians Under Authorization of the Council on Pharmacy and Chemistry of the American Medical AssociationStatements of composition refer in some cases to per centage by volume, in others to percentage by weight, and in still others to percentage by weight - volume - that is, the weight of a given chemical contained (or the weight of a given vegetable drug represented by extractives) in 100 Cc. Of the preparation. It has not been thought worth while to indicate whether the statement in each case is by volume, weight or weight-volume, since the differences are too small to have any therapeutic importance. Statements of alcoholic content refer to percentage by volume and are approximate only. In a few instances in which the quantity of alcohol in a dose is small, or in Which the preparation is intended for external use, the alcohol content is not stated.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.