Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 458
youconveniently can. Now stand on a chair anddrop the bird, and it will come down as if itwas a hawk after a chick. The weight of thepins pulls it down, the wings resist by pressureagainst the air, and the paper bird slides downinstead of falling direct. If the wings were sloped a little upward… … PENAUD S AEROPLANE MODEL. In this model it will be seen that the largerwings do not move the machine; it is driven bythe propeller at the back, just as if it were a 446 ABOUT FLYING-MACHINES. [April,
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