  CHAPTER II. AIR CURRENTS AND THE FLIGHT OF BIRDS. CHAPTER IV. PRINCIPALLY RELATING TO SCREWS. CHAPTER V. EXPERIMENTS WITH APPARATUS ATTACHED TO A ROTATING ARM. CHAPTER VI. HINTS AS TO THE BUILDING OF FLYING MACHINES. CHAPTER VII. THE SHAPE AND EFFICIENCY OF AEROPLANES. APPENDIX I. MAJOR BADEN-POWELL'S DEMAND. APPENDIX II. RECAPITULATION OF EARLY EXPERIMENTS. Please see the Transcriber’s Notes at the end of this document. Cover ARTIFICIAL AND NATURAL FLIGHT.A Pocket-Book of Aeronautics.—By H. W. L. Moedebeck. Translated from the German by Dr. W. Mansergh Varley. With 150 Illustrations. 10s. 6d. net. Contents.—Gases—Physics of the Atmosphere—Meteorological Observations—Balloon Technics—Kites and Parachutes—On Ballooning—Balloon Photography—Photographic Surveying from Balloons—Military Ballooning—Animal Flight—Artificial Flight—Airships—Flying Machines—Motors—Air Screws—Appendix—Index. “Will be highly welcome to all aeronauts. It may be said to be the only complete work practically dealing with such matters. We have no hesitation in thoroughly recommending this as an absolutely indispensable book.”—Knowledge. “It is without a doubt the best book that has appeared on the subject.”—Aeronautical Journal. “The present volume ought certainly to be possessed by every student of Aeronautics, as it contains a vast amount of information of the highest value.”—Glasgow Herald. WHITTAKER & CO., LONDON, E.C. ARTIFICIAL AND BY WITH 95 ILLUSTRATIONS. WHITTAKER & CO., |
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