Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 63
rgument that since the legs of man were betterdeveloped muscularly than his arms, flying should bedone with the legs. He built a machine on this plan,but no successful flights are recorded. In 1868, an experimenter by the name of Wen-ham added to the increasing sum of aeronauticalknowledge by… … 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
Aeronautics
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