- 1890 to 18912,977
- 1892 to 18942,580
- 1895 to 18962,575
- 1897 to 18993,103
- 1900 to 19012,933
- 1902 to 19042,665
- 1905 to 19062,533
- 1907 to 19092,812
- 1910 to 19112,830
- 1912 to 19143,309
- 1915 to 19162,944
- 19173,814
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