Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
![[A class in mathematical geography studying earth's rotation around the sun, Hampton Institute, Hampton, Virginia]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4OTkvMDEvMDEvYS1jbGFzcy1pbi1tYXRoZW1hdGljYWwtZ2VvZ3JhcGh5LXN0dWR5aW5nLWVhcnRocy1yb3RhdGlvbi1hcm91bmQtdGhlLXN1bi1oYW1wdG9uLTY0MC5qcGc%3D/40/31/webp "[A class in mathematical geography studying earth's rotation around the sun, Hampton Institute, Hampton, Virginia]")
[A class in mathematical geography studying earth's rotation around th...
Frances Benjamin Johnston Collection (Library of Congress). Public domain photograph - historical image of Virginia, United States, free to use, no copyright restrictions image - Picryl description
Crop rotation: one field is fallow, another has corn, a third has alfa...
Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.
Thomas Jefferson, no date, Notes on Agricultural Crop Rotation
Notes on Agricultural Crop Rotation Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.
Crop rotation: one field is fallow, another has corn, a third has alfa...
Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.
Thomas Jefferson, 1803, Notes on Crop Rotation
Notes on Crop Rotation Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.
Thomas Jefferson, no date, Notes on Agricultural Crop Rotation
Notes on Agricultural Crop Rotation Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.
Thomas Jefferson, 1791, Rotation of Crops
Rotation of Crops Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.
Thomas Jefferson, 1791, Rotation of Crops
Rotation of Crops Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.
The party of privilege, civil service reform, rotation in office, mone...
Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 75, Folder 23a.
The party of privilege, civil service reform, rotation in office, mone...
Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 75, Folder 23a.
![[Apparatus used to convert electrical energy into mechanical rotation, the basis of dynamos, using bar magnet, beaker of mercury, and current carrying wire] / A.A., del. ; J.B. Taylor, sc.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4MzkvMDEvMDEvYXBwYXJhdHVzLXVzZWQtdG8tY29udmVydC1lbGVjdHJpY2FsLWVuZXJneS1pbnRvLW1lY2hhbmljYWwtcm90YXRpb24tdGhlLWJhc2lzLTY0MC5qcGc%3D/40/70/webp "[Apparatus used to convert electrical energy into mechanical rotation, the basis of dynamos, using bar magnet, beaker of mercury, and current carrying wire] / A.A., del. ; J.B. Taylor, sc.")
[Apparatus used to convert electrical energy into mechanical rotation,...
Illus. in: Experimental researches in electricity / Michael Faraday. London : R. and J.E. Taylor, 1839-1855, v. 2, pl. 4. Published in: The tradition of science / Leonard C. Bruno. Washington, D.C. : Library of... More