Box 51
- Folder
- 1: Open Lectures [see also Suggestions--University Public Lectures]
- 2: Organs
- 3: Organization for a Durable Peace (1916, The Hague)
- 4: Oriental Education Investigation
- 5-7: Oriental Explorations (R. F. Harper; Paul Haupt; H. V. Hilprecht; Morris Jastrow; John Peters; C. R. Lanman; Charles F. Kent; Edgar J. Banks)
- 8-9: Oriental Institute
- 10: Oriental Museum (Haskell)
- 11: Oriental Society
- 12: Original sample of ribbon showing color chosen for University (letters about only)
- 13: Orthogenic Institute
- 14: Outline History of Origin of Languages
- 15: Outlook
- 16: Owen, William B.
[Owl and Serpent, see Chicago, University of]
- 17: Pacific Relations, Institute of
- 18: Paderewski
- 19: Paganini
- 20: Page, Walter Hines
- 21: Pageants
[Paleontology Department, see Chicago, University of]