Subjects
- Building materials.1
- Building.1
- Buildings.1
- Calendar, Gregorian.1
- Canals--Design and construction--Costs.1
- Canals--Design and construction.1
- Canals--England.1
- Canals--France.1
- Canals--United States.1
- Centennial Exhibition (1876 : Philadelphia, Pa.)1
- Child artists.1
- Civil engineering.1
- Coal mines and mining.1
- Commerce--United States.1
- Compass.1
- Construction workers--United States.1
- Courtship--United States.1
- Death--Poetry.1
- Drawbridges.1
- Education--Pennsylvania--19th century.1