Medill, John David2017-11-172017-11-171902-08-16YD-1902-08-16http://hdl.handle.net/20.500.11867/22792 sheets 15 x 22 inch. Printed. Marginal voids obscure content throughout. Images stitched to preserve content."Thomas A. Edison in a letter to the congress of European scientists now in session at Copenhagen says: "I believe that within 30 years all railways will discard steam locomotives and adopt electric motors and that the electric automobile will displace the horse almost entirely. In the present state of science there are no facts by which one could predict any commercial future for aerial navigation."No Known Copyright The organization that has made the Item available reasonably believes that the Item is not restricted by copyright or related rights, but a conclusive determination could not be made. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.