Kravigny, Frank W. The jungle route. [Stamped] - Mount Vernon, N.Y. Lecouver Press Co. [1940] - xix, 234 p. incl. front., illus., plates, ports., facsims. 21 cm. Bibliography: p. 191-195. Subjects--Corporate Names: Madeira and Mamore Railway. Subjects--Geographic Terms: Brazil.--Description and travel.