Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 63
Von Driebergs machine; view from above. flying machine with a series of six supporting planesmade of linen fabric. As he depended upon muscu-lar effort to work his propellers, he did not succeed … Wenhams arrangement of many narrow surfaces in six tiers, or decks, a, a,rigid framework; h, b, levers working flapping wings; e, e, braces. Theoperator is lying prone. in flying, but he gained information which has beenvaluable to later inventors. The history of flying machines cannot be written…
Aeronautics
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