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Scientific American, Vol. 96, No. 12 (March 23, 1907) (1907)

leaf 7

An illustration from Scientific American, Vol. 96, No. 12 (March 23, 1907), 1907, leaf 7
ACHINE. four and a half feet. While the body of an animal is provided with a backbone, breastbone, and ribs, in- BY DR. ALFRED GRADENWITZ, The flying machine illustrated herewith is arousing side of which the more sensitive organs are hidden, much interest at the present moment in German engi- this… … machinery, thus allowing this failure Hofmann lost the flying machine to be the support which he needed for the work, and was himself obliged to install a lifted or lowered and the wings to be extended or corresponding to an upper arm, is 10.9 feet, the lower folded up by means of a single…

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