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Subjects
- Education--United States--History--19th century.[remove]7
- Arithmetic--Problems, exercises, etc.6
- Arithmetic--Study and teaching.6
- Mathematics--Study and teaching.5
- Geometrical drawing.3
- Penmanship, American.3
- Angles (Geometry)2
- Buildings.2
- Fractions--Study and teaching.2
- Geometry--Problems, exercises, etc.2
- Geometry--Study and teaching.2
- Surveying--Problems, exercises, etc.2
- Surveying--Study and teaching.2
- Agriculture--Pennsylvania.1
- Family farms--Pennsylvania.1
- Farmers--Pennsylvania.1
- Forms (Law)--Study and teaching.1
- Horses.1
- Lakes.1
- Logarithms--Study and teaching.1