Aviation, its principles, its present and future
A 1913 popular technical primer on early flight by Sydney Ferris Walker, published in London by T. C. & C. E. Jack and in New York by Dodge, aimed at general readers following the new aeroplane. The plates are labelled line diagrams of monoplanes, biplanes and seaplanes, side and plan views with leader lines naming pylons, warping wires, fuselage and landing chassis.
