Subjects
- Geometry--Problems, exercises, etc.1
- Geometry--Study and teaching--Pennsylvania.1
- Gold mining.1
- Harbors.1
- Hoisting machinery.1
- Homestead Strike, Homestead, Pa., 1892.1
- Horse railroads.1
- Horse-drawn vehicles.1
- Hunting dogs.1
- Ice.1
- Inclined railroads.1
- Industrial facilities.1
- Industry.1
- Interiors.1
- Inventors.1
- Iron mining.1
- Knights.1
- Laborers.1
- Landscapes.1
- Lifeguards.1