Excerpt from The Physiology of Plants, Vol. 3: A Treatise Upon the Metabolism and Sources of Energy in PlantsAS in the previous volume a certain condensation has been effected in the present one, in spite of a slight increase in the subject-matter. All additions or interpolations are, however, enclosed in square brackets, except in the sections dealing with tendril-climbers, with protoplasmic streaming, and with the mechanics of water-transport, to which a few explanatory figures have also been added. The appendix gives a summary of the more important literature which has appeared since the issue Of the final part of the German edition, and notices of other recent works are interpolated in the foot-notes.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.