Materia Medica Pura Volume 2 Primary Source Edition PDF Download

Excerpt from Materia Medica Pura, Vol. 2 In order to preserve the power of the tinctures in tact, and to determine the power of the attenuations with tolerable cer tainty, all those drugs which can only be had dry, should be pulverized, and twenty parts of alcohol should be added to one part of the powder; these parts being shaken together several times a day, kept in a room of moderate temperature in stop pered phials, and the clear liquid being poured off after the lapse of six days.* Both the tinctures from dry substances, and those ex tracted from recent plants, are to be guarded against the light of day, in order to preserve them for a long time. For this pur pose, the phials may either be painted black, or else they may be placed in tin or wooden boxes; otherwise these tinc tures would be converted into vinegar in a'few years, even if prepared with the best alcohol, and would thus lose all their medicinal powers. 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.