Excerpt from Forest Insect Conditions in the Central Rocky Mountains, 1957 This report covers the status of insect activity during 1957 in the forested areas of Colorado, wyoming, South Dakota, Nebraska, and Kansas, as determined by aerial and ground sur veys. The aerial survey covered an estimated 26 million acres of Bederal, State, and private forests. Procedure and techniques developed by the Pacific Northwest Forest and Range Experiment Station were modified to fit central Rocky Mountain conditions. 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.