Download or read book A Guide to the Poisonous Plants and Weed Seeds of Canada and the Northern United States (Classic Reprint) written by Robert Boyd Thomson and published by Forgotten Books. This book was released on 2017-11-21 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Guide to the Poisonous Plants and Weed Seeds of Canada and the Northern United States The illustrations are from photographs and drawings made especially for the book. By means of these and by the classification into the groups above referred to, it should be possible for an amateur to identify the plant responsible in an ordinary case of poisoning. No key based on botanical characters has been included, since such a key would be impracticable because of confusion with the numerous non-poisonous forms. At the end of the book, however, a symptoms key has been added. Such a key cannot, in the present state of our know ledge, be made precise. Its purpose is merely to facilitate diagnosis by suggesting the plants that should be looked for when certain symptoms are observed and plant poisoning is suspected. 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.