Abstract Of The Proceedings Of The Society Of Arts PDF Download

Excerpt from Abstract of the Proceedings of the Society of Arts, With List of Officers and Members, for the Twenty-Eight Year, 1889-1890: Meetings 392 to 404 Inclusive Until very recently chemists did not, in general, attach suffi cient importance to these organic contaminations, and in most of their analyses we find the different kinds of organic matter, vegetable and animal, living and dead, all lumped together, and included under the word 'traces.' Indeed. Chemistry is but ill-adapted to in vestigate the nature of these organic matters; it gives but a very rough estimate only of their gross amount, and does not discriminate, as we have said, the animal from the vegetable, the dead from the living, and tells us nothing about the families, genus, and species to which the numerous living productions contained in impure waters severally belong; or of their habits and modes of life, etc. For twenty years after Dr. Hassall's day his work remained almost alone. In 1870, however, Prof. Cohn, the biologist. Of Bres lau, in an extremely suggestive paper on the Microscopical Analysis of Well Waters, perceiving, perhaps, better than anvone else has yet done the profound significance of such studies, wrote as follows: There is no doubt that microscopical examinations of drinking-waters, properly conducted, will strengthen and perfect the chemical exami nations at the most essential points, and that they only will give us information upon certain questions which the reagents of the chemist cannot answer. 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.