Subject
- Hospitals1
- Hotels1
- House furnishings1
- Housing5
- Hullet, George Augustus, 1867-19551
- Humboldt, Hildegard1
- Hundt, Friedrich, 1807-18871
- Hydrazine1
- Hydrocyanic acid1
- Hydrogen1
- Hydrogen ions1
- Hydrogen peroxide1
- Hyperthyroidism1
- Höber, Rudolf, 1873-19532
- Ideal gas law1
- Identification cards3
- Ikeda, Kikunae, 1864-19361
- Illustrated works2
- Ilse, Hayn1
- Immigrants12