Harmful Effects of Aldehydes in Soils (Classic Reprint)

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Excerpt from Harmful Effects of Aldehydes in SoilsIn the course of a study of the soils on the Mount Vernon estate, Virginia, large samples from the ¿ower garden were subjected to a special examination in the laboratory. In this ¿ower garden box hedges, roses, and other perennial garden plants have grown for years and manure has been liberally applied. The soil is a brown mellow-loam containing enough sand and vegetable matter to effect an excellent structural condition. At a depth of about 15 inches the surface soil passes into a reddish brown to yellowish brown clay loam. This subsoil in turn grades into a compact red clay, faintly mottled in places with grayish colors, at a depth of approximately 24 inches. This layer of material resembles a hardpan formation. The compact condition undoubtedly affects the movement of moist ure and air. The examination of the soil in the laboratory showed that-the surface soil-was acid and the subsoil decidedly so.When subjected to the methods for isolating organic substances from soils as devised in this laboratory, saccharic acid, acrylic acid, mannite, and salicylic aldehyde were obtained. The details of the isolation of these compounds have already been reported 1 and only the salicylic aldehyde is of interest in the present paper. It was obtained as follows.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.