Subject
- Historians1
- Hollies1
- Horns1
- Horses1
- Horseshoeing1
- Horseshoers1
- Hot air balloons14
- Hot air balloons--Design and construction1
- Hove, Frederick Hendrick van, 1628?-16983
- Human anatomy1
- Hydraulic machinery1
- Hydrogen3
- Hydrography1
- Hygrometers2
- Ice2
- Industrial arts1
- Inscriptions14
- Inscriptions, English (Old)1
- Insects18
- Intoxication1