Mimeograph copies 8.5x11", typed of lectures by Professor Bradley Jones entitled: "Talk No. 1, Early Attempts at Flying", "Talk No. 2, Outstanding Recent Feats", "Talk No. 3, Stratosphere Flying", "Talk No. 4, Streamlining in Airplanes and Automobiles" (this one by Professor H.W. Sibert). It appears that these were read on the radio, station WLW, on weekly intervals beginning April 20, 1935. One staple left margin, folded once horizontally. Very good.