有声读物: National Geographic Magazine Vol. 09 - 09. September 1898

The National Geographic Magazine, an illustrated monthly, Vol IX, September 1898.
It includes the following articles:

• The Growth of the United States, by W J McGee
• Bitter Root Forest Reserve, by Richard U. Goode
• Atlantic Estuarine Tides, by Mark S. W. Jefferson
• The Forest Conditions and Standing Timber of the State of Washington, by Henry Gannett
• American Association for the Advancement of Science, by John Hyde