有声读物: National Geographic Magazine Vol. 09 - 06. June 1898

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

• The Philippine Islands, by F. F. Hilder
• Notes on Some Primitive Philippine Tribes, by Dean C. Worcester
• Commerce of the Philippine Islands, by John Hyde
• The Disposition of the Philippines, by Charles E. Howe