Subject (Topic)
- Mechanical drawing22
- Drafting and industrial drawings18
- Architecture--Designs and plans--Working drawings15
- Agricultural machinery--Design and construction10
- Agricultural instruments7
- Drafting and industrial drawings7
- Drawbridges7
- Mills and mill-work7
- Naval architecture Designs and plans6
- Locks (Hydraulic engineering)6
- Naval architecture5
- Naval drafting5
- Canals--Design and construction4
- Weights and measures4
- Architecture--Designs and plans4
- Weights and measures4
- African American women teachers3
- African Americans--Civil rights3
- African Americans--Education3
- Civil rights movements Southern States History 20th century3