Excerpt from Journal of Forestry, 1920, Vol. 18: Official Organ of the Society of American Foresters; Combining the Proceedings of the Society and the Forestry Quarterly This type of machine requires a mechanic as well as a pilot to Operate the valves from the reserve gasoline tanks and to maintain an even feed of fuel. The observer sits in a cockpit in the front and has an ideal opportunity to see the country, to take photographs and to make sketches and notes. All this can be done easily and comfortably on a small drawing board held on the knees. Altimeter and compass are within easy View. 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.