| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Condition, Elevation, Emigration, and Destiny of the Colored People of the United States | Delany, Martin Robison, 1812-1885 | en | | | | | 2005-11-26 |
| Elevator Systems of the Eiffel Tower, 1889 | Vogel, Robert M. | en | | | | | 2010-05-07 |
| An Humble Address and Earnest Appeal to Those Respectable Personages in Great-Britain and Ireland, Who, by Their Great and Permanent Interest in Landed Property, Their Liberal Education, Elevated Rank, and Enlarged Views, Are the Ablest to Judge, and the | Tucker, Josiah | en | | | | | 2010-05-27 |
| Down Town Brooklyn
A Report to the Comptroller of the City of New York on Sites for Public Buildings and the Relocation of the Elevated Railroad Tracks now in Lower Fulton Street, Borough of Brooklyn | | en | | | | | 2010-07-15 |