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Excerpt from Forest Resources of Illinois: June 1949 The Forest Survey is a nation-wide activity of the Forest Ser vice. The fivefold purpose of the Forest Survey is: (l) to make a field inventory of the present supply of standing timber; (2) to asoer tain the rate at which this supply is being increased through growth; (3) to determine the rate at which it is being diminished through in dustrial and domestic uses, windfall, fire, disease, and other causes; (h) to determine the present consumption and the probable future trend in requirements for forest products; and (5) to interpret and correlate these findings with existing and anticipated economic conditions, as an aid in the formulation of both private and public policies for use of land suitable for forest production. 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.