Excerpt from Agricultural Libraries Information Notes, Vol. 16: June, July, August 1990 One was with Dr. Charles A. Francis of the University of Nebraska. He has long been an advocate of the trend to a more sustainable agriculture, and a prolific writer and spokesman, explaining the techniques to others and the systems concept which integrates the practices. 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.