Download or read book Contributions From the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, 1937-1938, Vol. 14 (Classic Reprint) written by Pennsylvania University and published by Forgotten Books. This book was released on 2018-10-11 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Contributions From the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, 1937-1938, Vol. 14 This paper presents, in abbreviated form, some results of a study of changes in electrical conductance and in hydrogen-ion concentration of dilute acid solutions exposed to the action of seedling roots of Lupin/us albus L. Effects of these solutions on the plants are also described. 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.