Excerpt from Lectures on Agricultural Chemistry and Geology For the sake of clearness, I have, in the following pages, divided the subject into four parts, the study Of each preceding part preparing the way for a complete understanding of those which follow. Thus the first part is devoted to the organic elements and parts of plants, the nature and sources Of these elements, and an explanation of the mode in which they become con verted into the substance Of plants - the second to the inorganic elements of plants, comprehending the study of the soils from which these elements are derived with the general relations of geology to agriculture the third to the nature of manures, by which soils are made more productive, and the amount of vegetable produce increased - and the fourth, to the results of ve gelation - to the kind and value of the food produced under different circumstances - and its relation to the growth of cattle, and to the amount and quality of dairy produce. 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.