Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 458
n a wire fixedinto the lower part. A simpler model on the same principle is theone known as Penauds Helicoptere, or, inEnglish, screw-wing, the invention of a clever ABOUT FLYING-MACHINES. 445 young Frenchman who made some of the bestmodels, though he worked only a short time onthe subject, and… … penauds model. as the one in the picture. A common Japanesetoy sometimes found in toy-shops illustratesthis principle. It is an imitation butterfly thatwill fly as high as the roof of an ordinary house. These two forms will show how the screw-models work. Those driven by flapping wingsmay be more…
Children's literature
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