![Washington Aqueduct. Specifications for Conduit [and] Specification For Graduation on Section No....](/pictures/thumb/145711_1.jpg?v=1611683824)
The construction of the Washington Aqueduct was done under the supervision of Montgomery C. Meigs of the U. S. Army Corps of Engineers. As seen..... Read More about Washington Aqueduct. Specifications for Conduit [and] Specification For Graduation on Section No....
![Ironclad Ships:] Report of the National Academy of Sciences for the Year 1863. President National...](/pictures/thumb/3728150_1.jpg?v=1544476289)
This illustrated report contains much on ironclad ships, first used in battle the year before, and on the ironclad monitor U.S.S. Roanoke, the first ship..... Read More about Ironclad Ships:] Report of the National Academy of Sciences for the Year 1863
Three large format photographs depicting the interior showroom and a trade show booth of New York scientific and technology publisher Spon & Chamberlain. The two..... Read More about C.1900s Three Original Photographs of Interior of New York Scientific and Engineering Publisher...
