Excerpt from Results of Experiments at Rothamsted, the Growth of Leguminous Crops, for Many Years in Succession on the Same Land, Vol. 4: Being (With Additions) A Lecture Delivered November, 1, 1889, at the Royal Agricultural College, Cirencester It so happens that, both the scientific interest, and the practical value, of these crops, whether as elements in rotation, or as grown in the mixed herbage of grass-land, depend very largely on the amount of nitrogen which they contain, and on the sources of their nitrogen and especially on the great differences in these respects, between them, and the representatives of the other families with which they are grown, either in alternation in our rotations, or in association in our meadows and pastures. So much is this the case, that it is essential to a proper under standing and appreciation, of the characteristics of growth of these crops, and for the illustration of their value and importance as depending on those characteristics, to compare and to contrast the conditions and results of their growth, with those of the crops of other families. 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.