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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
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