Audiolibro: National Geographic Magazine Vol. 10 - 07. July 1899

The National Geographic Magazine, an illustrated monthly, Vol X, July 1899. It includes the following articles: * Physiography of the Nicaragua Canal Route by C. Willard Hayes * Nicaragua and the Isthmian Routes by A. P. Davis * The Wellman Polar Expedition by J. Howard Gore * The Coast and Geodetic Survey: its present work by E. D. Preston * Exploration in Alaska * Meteorology in the Philippines * The Mission of the Diana along with Geographic Literature and Miscellanea