Encyclopedias, Almanacs, Transcripts, and Maps
- Invasiveness and Intracellular Infection
- Inventing the Submarine
- Invention of the Bar Code Revolutionizes Retail Sales and Inventory Control
- Invention of the Sewing Machine
- Inventions for Daily Life
- Invertebrate Zoology, Lamarckism, and Their Influences on the Sciences and on Society
- Investigations into the Irrationality and Transcendence of Various Specific Numbers
- Ion and Ionization
- Ion and Ionization
- IQ Debate
- Iremonger, Lucille (d'Oyen) (ca. 1920-1989?)
- Iridis (Newsletter)
- Iris Family
- Iris Family
- Irish Society of Diviners
- Irish UFO Organization
- Irmgard Flugge-Lotz
- Irradiated Food
- Irrational Number
- Irrational Number