National Geographic Magazine

The National Geographic Magazine is published by the National Geographic Society. The images taken from the volumes prior to 1923 have been subdivided by issue:

Volume 31

Wikisource has a list of articles for this volume.

1. January 1917 (pp. 1–94)
2. February 1917 (pp. 95–192)
3. March 1917 (pp. 193–286)
4. April 1917 (pp. 287–382)
5. May 1917 (pp. 383–474)
6. June 1917 (pp. 475–570)

Volume 32

Wikisource has a list of articles for this volume.