Excerpt from Descriptive Catalogue of Fluid and Solid Extracts: Also Pills, Resiids and Alkaloids The progress of Chemical Science has enabled the manufacturer of medicinal agents to offer remedies to the Medical Profession far superior to those formerly in use. In department has more progress been made than in that of Vegetable Chemistry, in ascertaining the nature of the active principles of plants, and obtaining them in an available form for use. On the supposition that the virtues Of plants may be obtained in minute doses, great attention has been paid to isolating their medicinal principles. The effects Of the separated alkaloids and resiids have t entirely answered expectation, partly from the difficulty and expense Of Obtaining them in a state of purity, partly from their want of permanency, but principally from the fact that the isolated principle does t contain the full property of the plant. In a root or leaf may exist two or more principles, each Of which modifies the action of the other; and this original combination, formed by Nature in the plant, acts more kindly and effectually upon the human system than when separated by science. 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 techlogy 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.