| Save | Year | Entries | |
| Husain bin ʻAbdullah bin Sina, 980-1037 -- See Avicenna, 980-1037 | 1 | ||
| Ḥusayn ibn ʻAbd Allāh ibn Sīnā, 980-1037 -- See Avicenna, 980-1037 | 1 | ||
| Hussey, Obed, 1792-1860 : Greeno, Follett Lamberton, | 1912 | 1 | |
| Hutherfield (England) -- See Huddersfield (England) | 1 | ||
Your entry Hutton family would be here
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| Huxley, Julian, 1887-1975 : Bashford, Alison, | 2022 | 1 | |
| Huxley, Professor 1825-1895 -- See Huxley, Thomas Henry, 1825-1895 | 1 | ||
| Huxley, T. H. 1825-1895 -- See Huxley, Thomas Henry, 1825-1895 | 1 | ||
| Huxley, Thomas Henry, 1825-1895 | 7 | ||
| Huxley, Thomas Henry, 1825-1895 -- Correspondence | 1995 | 1 | |
| Huxley, Thomas Henry, 1825-1895 -- Influence : Collie, Michael | c2011 | 1 | |
| Huxley, Thomas Henry, 1825-1895 -- Manuscripts | 1995 | 1 | |
| Huxley, Thomas Henry, 1825-1895 -- Travel -- United States : Collie, Michael | c2011 | 1 | |
| Huxley, Thos. H. 1825-1895 -- See Huxley, Thomas Henry, 1825-1895 | 1 | ||
| Hwâng tê soó wăn -- See Su wen | 1 | ||
| Hwangje naegyŏng somun -- See Su wen | 1 | ||
| Hyacinth family (Plants) -- See Asparagaceae | 1 | ||
| Hyacinthaceae -- See Asparagaceae | 1 | ||
| Hyacinths : Wakker, J. H | 1887 | 1 | |
| Hyacinths -- Early works to 1800 | 2 | ||
| Hybrid ferns -- Northeastern States -- Identification : Potter, Henry, | 1989 | 1 | |
| Hybrid Iris Garden (Firm) : Hybrid Iris Garden (Firm) | 1940 | 1 | |
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Hybridisation -- See Hybridization --subdivision Hybridization under individual animals and groups of animals, e.g. Fishes--Hybridization |
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Hybridism -- See Hybridization --subdivision Hybridization under individual animals and groups of animals, e.g. Fishes--Hybridization |
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| Hybridity of races -- See Miscegenation | 1 | ||
| Hybridization -- 2 Related Subjects | 2 | ||
| Hybridization | 7 | ||
| Apricot -- Hybridization -- California -- San Joaquin Valley : Brantley, Chip | 2009 | 1 | |
| Birds -- Hybridization : Gray, Annie P | c1958 | 1 | |
| Plum -- Hybridization -- California -- San Joaquin Valley : Brantley, Chip | 2009 | 1 | |
| Hybridization, Vegetable | 28 | ||
| Hybridization, Vegetable -- England -- History : Leapman, Michael, | 2001 | 1 | |
| Hybridization, Vegetable -- Periodicals | 1965- | 1 | |
| Hybridization, Vegetable -- United States | c1978 | 1 | |
| Hydantoin -- See also Phenytoin | 1 | ||
| Hydantoin : Hormats, Ellis Irving | 1943 | 1 | |
| Hydnaceae | 2 | ||
| Hydnaceae -- Anatomy : Boidin, Jacques | 1958 | 1 | |
| Hydnaceae -- Identification : Boidin, Jacques | 1958 | 1 | |
| Hydnocarpus oil -- See Chaulmugra oil | 1 | ||
| Hydnoraceae -- Africa, East -- Classification : Beentje, Henk | 2002 | 1 | |
| Hydnum -- United States : Coker, William Chambers, | 1951 | 1 | |
| Hydra : Symposium on the Physiology and Ultrastructure of Hydra and Some Other Coelenterates | 1961 | 1 | |
| Hydra viridis : Baker, Henry, | 1744 | 1 | |
| Hydracarina -- See Water mites | 1 | ||
| Hydrachnellae -- See Water mites | 1 | ||
| Hydrachnellids -- See Water mites | 1 | ||
| Hydrachnidae : Soar, Charles David | 1929 | 1 | |
| Hydrachnidia -- See Water mites | 1 | ||
| Hydrachnids -- See Hydrachnidae | 1 | ||
| Hydrachnoidea -- See Hydrachnidae | 1 | ||