Excerpt from Environmental Quality, Vol. 2: Hearings Before the Subcommittee on Science, Research, and Development of the Committee on Science and Astronautics U. S. House of Representatives Nineteenth Congress, Second Session, January 17, 18, 19, 31, February 1, 2, March 12, 13, 14, 1968 Society of America; accompanied by John E. Caution, ich State University, President-elect of the Ecological Society, and Frederick nt II, University of wisconsin-green Bay. 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.