| Orienting the House: A Study of the Placing of the House with Relation to the Sun's Rays
American Face Brick Association | |
| Origin and Development of Form and Ornament in Ceramic Art. / Fourth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1882-1883, Government Printing Office, Washington, 1886, pages 437-466.
William Henry Holmes | |
| Origin and Early History of the Fashion Plate
J. L. Nevinson | |
| Origin Myths among the Mountain Peoples of the Philippines
H. Otley Beyer | |
| Origin of Cultivated Plants / The International Scientific Series Volume XLVIII
Alphonse de Candolle | |
| Origin of modern calculating machines
J. A. V. Turck | |
| Origin of the Anglo-Boer War Revealed: The Conspiracy of the 19th Century Unmasked / (2nd ed.)
C. H. Thomas | |
| Origin of the 'Reorganized' Church and the Question of Succession
Joseph Fielding Smith | |
| Original Letters and Biographic Epitomes
J. Atwood Slater | |
| Original Penny Readings: A Series of Short Sketches
George Manville Fenn |
