- 1894 to 18952,488
- 1896 to 18972,872
- 1898 to 18992,596
- 1900 to 19012,925
- 1902 to 19032,358
- 1904 to 19052,453
- 1906 to 19072,488
- 1908 to 19092,639
- 1910 to 19112,820
- 19122,663
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund