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Lecture on artificial flight given on request of the Academy of Natural Sciences on August 7, 1876 in San Francisco, California by William G. Krueger with reference to a model of his own invention. - Summary by Carrie Gorman
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Lecture on artificial flight given on request of the Academy of Natural Sciences on August 7, 1876 in San Francisco, California by William G. Krueger with reference to a model of his own invention. - Summary by Carrie Gorman