Encyclopedias, Almanacs, Transcripts, and Maps
- Haldan Keffer Hartline
- Haldane, J. B. S.
- Halide, Organic
- Halide, Organic
- Hall, James A(lbert) (1934-)
- Hall, Manly Palmer (1901-1990)
- Hall, Prescott F(arnsworth) (1868-1921)
- Hall, Trevor H(enry) (1910-)
- Hallermann-Streiff syndrome
- Hallermann-Streiff Syndrome
- Halley’s Comet
- Hallowed Grounds Fellowship of Spiritual Healing and Prayer
- Halomancy
- Hambaruan
- Hamilton Othanel Smith
- Hamilton, T(homas) Glen(dinning)(1873-1935)
- Hammerhead: Scopidae
- Hammurabi, Law of
- Hamon
- Hamptons Diet