1. Aerial Navigation. New York: Railroad and Engineering Journal, 1891. 36 pp. 7½ x 4½ inches. Several steel-engraved illustrations. Original orange printed wrappers. Upper wrapper and title inkstamped with date that the lecture was delivered, May 2, 1890. Lightly rubbed.
2. Progress in Flying Machines. New York: the American Engineer and Railroad Journal, [1894]. iv, [2], 308 pp. 9 x 6 inches. Original blue-gray cloth, gilt device on upper cover of Lilienthal in flight. Lightly rubbed.

FIRST EDITIONS. Applying his engineering background, Chanute collected all the data that he could find from flight pioneers around the world. He published this as a series of articles in The Railroad and Engineering Journal from 1891 to 1893, and collected them together in the present volume. This is the most systematic global survey of fixed-wing heavier-than-air aviation research published up to that time.