Sách nói: National Geographic Magazine Vol. 10 - 05. May 1899

The National Geographic Magazine, an illustrated monthly, Vol X, May 1899.
It includes the following articles:

• The Redwood Forest of the Pacific Coast, by Henry Gannett
• Is Climatic Aridity Impending on the Pacific Slope? by J. B. Leiberg
• Professor O. C. Marsh, by W. J McGee
• The Area of the Philippines, by George Davidson
• The Recent Ascent of Itambe, by J. C. Branner