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Subjects
- Arithmetic--Study and teaching.7
- Mathematics--Study and teaching.[remove]7
- Penmanship, American.[remove]7
- Arithmetic--Problems, exercises, etc.6
- Education--United States--History--19th century.5
- Surveying--Study and teaching.3
- Buildings.2
- Surveying--Problems, exercises, etc.2
- Weights and measures.2
- Windmills.2
- Accounting--Study and teaching.1
- Angels.1
- Angles (Geometry)1
- Astronomy--Study and teaching (Secondary)1
- Compasses (Mathematical instruments)1
- Eagles.1
- Fractions--Study and teaching.1
- Geodesy--Study and teaching.1
- Geometry--Problems, exercises, etc.1
- Geometry--Study and teaching.1