Chanute, Octave, 1832-1910 · New York, The Railroad and engineering journal · leaf 30
rections and cause the apparatus torise or to fly in a circle, according to the proportions ofits various parts. And lastly, in recent years, experiments have been madewith combinations of fixed surfaces, called aeroplanes, tosustain the weight, and of rotating vertical screws to pro-pel. Machines… … Fig. 6. self-contained motor, and perhaps, after all, the best ex-ample of this class of contrivance is the artificial butterflyof M. Dandrieux, which is shown in fig. 7.
Aeronautics
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