This book is written for the guidance of the novice in aviation--the man who seeks practical information as to the theory, construction and operation of the modern flying machine. With this object in view the wording is intentionally plain and non-technical.
nts. XVIII. Demand for Flying Machines Wonderful Results in a Year--Factories Over- crowded with Orders. XIX. Law of the Airship Rights of Property Owners--Some Legal Peculiarities--Danger of Trespass. XX. Soaring Flight XXI. Flying Machines vs. Balloons XXII. Problems of Aerial Fligh XXIII. Amateurs May Use Wright Patents XXIV. Hints on Propeller Construction XXV. New Motors and Devices XXVI. Monoplanes, Triplanes, Multiplanes XXVII. Records of Various Kinds
EVOLUTION OF TWO-SURFACE FLYING MACHINE.
By Octave Chanute.
I am asked to set forth the development of the "two- surface" type of flying machine which is now used with modifications by Wright Brothers, Farman, Delagrange, Herring and others.
 Now dead.
This type originated with Mr. F. H. Wenham, who patented it in England in 1866 (No. 1571), taking out provisional papers o