AERONAUTICAL ARTICLES. The subject of aeronau tics is treated in this work in the following series of articles. Under FLIGHT, NATURAL, will be found a study of natural flight, dealing with the mechanism of the bird's wing and the principles which underlie its use. From this the reader can pass to a general survey of artificial flying under AERONAUTICS and AVIATION, CIVIL.
The navigation and development of the balloon, and its trans formation into an airship, can be studied in the articles BALLOON, AIRSHIP and AIRSHIP SHEDS.
Heavier than air flying machines are treated in the articles AEROPLANE, BIPLANE, MONOPLANE, HELICOPTER, ORNITHOPTER, GYROPLANE and AILERON.
Flying machines capable of alighting upon water are dealt with in the article SEAPLANE; in this connection the article AIRCRAFT