- 1890 to 18912,974
- 1892 to 18942,576
- 1895 to 18962,572
- 1897 to 18993,060
- 1900 to 19012,929
- 1902 to 19042,494
- 1905 to 19062,531
- 1907 to 19092,809
- 1910 to 19112,824
- 1912 to 19143,302
- 1915 to 19162,940
- 19173,810
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