Excerpt from A Textbook of Botany for Colleges Thus the science of Botany has a scope far too vast, and a body of knowledge much too great, for any one mind to grasp. Therefore it has become subdivided for purposes of exact investigation. From this point of View, all Botany falls into four divisions, and they into subdivisions, as follows. 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.