ABBOT, W. J., Aircraft and Submarines (1918) ALEXANDER, J. H., Model Balloons and Flying Machines (1910) "AVION," Aeroplanes and Aero Engines (1918) BARBER, HORATIO, The Aeroplane Speaks (1917) BARNWELL, F. S., Aeroplane Design (1917) BERGET, A., The Conquest of the Air (1911) BERRY, W. H., Aircraft in War and Commerce (1918) BRUCE, E. H. S., Aircraft in War (1914) CAVANAGH, GEORGE A., Model Aeroplanes and Their Motors (1916) CHATLEY, HERBERT, Principles and Design of Aeroplanes (1912) CURTISS, G. H., and POST, A., Curtiss Aviation Book (1912) CORBIN, T. W., Aircraft, Aeroplanes and Airships (1914) COLLINS, A. FREDERICK, The Boy's Airplane Book (1919) COLLINS, A. FREDERICK, How to Fly (1917) COLVIN, F. H., Aircraft Mechanic's Handbook (1918) DOMMETT, W. E., Aeroplanes and Airships (1916) FALES, E. N., Learning to Fly in the U. S. Army (1917) FERRIS, R., How it Flies (1910) GRAHAME-WHITE, C., and HARPER, H., Heroes of the Air (1912) GRAHAME-WHITE, C., and HARPER, H., Learning to Fly (1916) GRAHAME-WHITE, C., The Story of the Aeroplane (1911) GRAMONT, A. A. DE, Aviator's Elementary Handbook (1918) HAYWARD, CHAS. B., Building and Flying an Aeroplane (1918) HEARNE, R. P., Zeppelins and Super-Zeppelins (1916) HEARNE, R. P., Airships in Peace and War (1910) HILDEBRAND, A. L. H., Airships Past and Present (1908) JANE'S FIGHTING SHIPS, (An Annual) JUDGE, A. W., Design of Aeroplanes (1916) LANCHESTER, F. W., Aircraft in Warfare (1916) LILIENTHAL, O., Bird Flights as the Basis of Aviation (1917) LOENING, G. C., Military Aeroplanes (1916) MCCONNELL, JAMES R., Flying for France (1917) MCMINNIES, W. G., Practical Flying (1918) MAXIM, H. S., Artificial and Natural Flight (1908) MIDDLETON, E. C., The Way of the Air (1917) MIDDLETON, E. C., Glorious Exploits of the Air (1918) MIDDLETON, E. C., Airfare of Today and the Future (1918) MUNDAY, ALBERT H., The Eyes of the Army and Navy (1917) ORCY, L. D', Editor and Comp., Airship Manual (1917) PAGE, CAPT. VICTOR WILFRED, The A-B-C of Aviation (1918) PEARY, R. E., Command of the Air (Speech delivered before the American Academy of Political and Social Science) (1917) RATHBUN, JOHN B., Aeroplane Construction and Operation (1918) ROBSON, W. A., Aircraft in War and Peace (1916) ROTH, C. W., Short Course in the Theory and Operation of the Free Balloon (1918) ROUSTAM-BEK, B., Aerial Russia (1916) SIMMONDS, R., All About Aircraft (1915) STOUT, WM. B., Acquiring Wings (1917) TALBOT, F. A., Aeroplanes and Dirigibles of War (1915) THURSTON, A. B., Elementary Aeronautics (1911) TURNER, C. C., Aircraft of Today (1917) TURNER, C. C., Marvels of Aviation (1916) VERRILL, A. W., Harper's Aircraft Book (1913) WALKER, S. F., Aviation, Its Principles, Its Present and Future (1912) WALKER, F., All About Zeppelins and Other Enemy Aircraft (1915) WIDMER, EMIL J., Military Observation Balloons (1917)