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Subjects
- Geometry--Problems, exercises, etc.[remove]5
- Arithmetic--Problems, exercises, etc.3
- Education--United States--History--19th century.3
- Trigonometry--Problems, exercises, etc.3
- Angles (Geometry)2
- Arithmetic--Study and teaching.2
- Buildings.2
- Geometry--Early works to 1800.2
- Geometry--Study and teaching.2
- Mercator projection (Cartography)2
- Navigation--Early works to 1800.2
- Navigation--Problems, exercises, etc.2
- Sailing ships.2
- Sailing--Study and teaching.2
- Surveying--Problems, exercises, etc.2
- Trigonometry--Early works to 1800.2
- Accounting--Study and teaching--Pennsylvania.1
- Algebra--Early works to 1800.1
- Algebra--Problems, exercises, etc.1
- Arithmetic--Study and teaching--Pennsylvania.1