| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Farm drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles | French, Henry F. (Henry Flagg), 1813-1885 | en | 2007-11-10 | ||||
| Photographic Reproduction Processes | Duchochois, Peter C. | en | Photographic reproduction of plans, drawings, etc.; Photography -- Printing processes | 2007-12-24 |