Handbuch der Ichthyologie - Günther, Albert C. L. G. (Albert Carl Ludwig Gotthilf), 1830 -1914 (C. Gerold's Sohn, 1886)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1875)

Handbuch für botanische Bestimmungsübungen - Niedenzu, Franz, 1857 -1937 (Engelmann, 1895)

Handwörterbuch der naturwissenschaften - Verworn, Max, 1863 -1921 (G. Fischer, 1912)

Hardy American ornamental plants - Gardens of the Blue Ridge (Nursery) (The Gardens)

Hardy American ornamental plants for immediate effects - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1934)

Hardy American ornamental plants for immediate effects : fall 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Hardy American ornamental plants for immediate effects : spring 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1936)

Hardy American ornamental plants for immediate effects : spring 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Hardy American plants and Carolina mountain wildings - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1940)

Hardy American plants and Carolina mountain wildings, cinnamon fern, natural planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1941)

Hardy American plants and Carolina mountain wildings : limited 60-day offer, free delivery : time limit, March 20, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1942)

Hardy American plants and Carolina mountain wildings : limited 90-day offer, free delivery : time limit, August 31, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1942)

Hardy deciduous trees and shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardens of the Blue Ridge, 1937)

Hardy Fern Foundation newsletter - Hardy Fern Foundation. (The Foundation, 1992)

Hardy Fern Foundation newsletter - Hardy Fern Foundation. (The Foundation, 1994)

Hardy Fern Foundation newsletter - Hardy Fern Foundation. (The Foundation, 1997)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 1998)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2001)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2002)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2005)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2008)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2009)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2010)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2013)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2014)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2015)

Hardy ferns and flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kenneth E. Gillett, 1932)

Hardy native ferns, orchids, lilies, trilliums : all for planting in early autumn, 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1927)

Hardy plants for the home garden, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1938)

Hardy plants for the home garden, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1939)

Hardy plants for the home garden, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1940)

Hardy vines, climbers, creepers, ferns, aquatic and bog plants, orchids, bulbs and perennials : July and August offerings : all for planting in early autumn, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1930)

Hardy vines, climbers, creepers, ferns, aquatic and bog plants, orchids, bulbs and perennials : special offerings for July and August : all for planting in early autumn, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1931)

Hardy vines, climbers, creepers, ferns, aquatic and bog plants, orchids, bulbs and perennials : all for planting in early autumn, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1929)

[Harlan P. Kelsey (Firm) materials] - Harlan P. Kelsey (Firm) (1885)

Harriman Alaska series. vol. I-V, VIII-XIV - Smithsonian Institution (Smithsonian Institution, 1904)

Hawaiian Fungi - Stevens, Frank Lincoln, 1871 -1934 (The Museum, 1925)

Hayward's Botanist's pocket-book; containing the chief characteristics of British plants; with botanical name, common name, soil or situation, colour, growth, and time of flowering of every plant, arranged under its own order - Druce, George Claridge, 1850 -1932 (G. Bell, 1930)

he bei mu lan wei chang zhi wu zhi 河北木兰围场植物志 - Zhao, Jiancheng & Kong Zhaopu 赵建成, 孔照普 (ke xue chu ban she科学出版社, 2008)

he bei ye sheng zi yuan zhi wu zhi 河北野生资源植物志 - Du, Yibin (杜怡斌) (he bei da xue chu ban she河北大学出版社, 2000)

Hedwigia (Verlag und Druck von C. Heinrich, 1891)

Hedwigia (Verlag und Druck von C. Heinrich, 1892)

Hedwigia (Verlag und Druck von C. Heinrich, 1900)

Hedwigia (Verlag und Druck von C. Heinrich, 1903)

Hedwigia (Verlag und Druck von C. Heinrich, 1904)

Hedwigia (Verlag und Druck von C. Heinrich, 1906)

Hedwigia (Verlag und Druck von C. Heinrich, 1907)

Hedwigia (Verlag und Druck von C. Heinrich, 1909)

Hedwigia (Verlag und Druck von C. Heinrich, 1912)

Hedwigia (Verlag und Druck von C. Heinrich, 1914)

Hedwigia (Verlag und Druck von C. Heinrich, 1915)

Hedwigia (Verlag und Druck von C. Heinrich, 1918)

Hedwigia (Verlag und Druck von C. Heinrich, 1919)

Herbicides for forest weed control in the inland Northwest : a summary of effects on weeds and conifers - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1985)

Der Hercynische Florenbezirk : Grundzüge der Pflanzenverbreitung im mitteldeutschen Berg- und Hügellande vom Harz bis zur Rhön, bis zur Lausitz und dem Böhmer Walde - Drude, Oscar, 1852 -1933 (W. Engelmann, 1902)

Les Hétéroptères Miridés de France. tome 1, les secteurs biogéographiques - Ehanno, Bernard 1935 - (1983)

Les Hétéroptères Miridés de France : inventaire critique des espèces recensées des territoires étudiés, des milieux explorés, d'après les travaux des auteurs depuis 1820 et les données personnelles. tome 1 bis, Les secteurs biogéographiques (suite) - Ehanno, Bernard 1935 - (1987)

Les Hétéroptères Miridés de France : inventaire critique des espèces recensées des territoires étudiés, des milieux explorés, d'après les travaux des auteurs depuis 1820 et les données personnelles. tome II-A, Inventaire et synthèses écologiques - Ehanno, Bernard 1935 - (1987)

Histoire naturelle des poissons de la France - Moreau, Charles Émile. (G. Masson, 1881)

Histoire physique, naturelle, et politique de Madagascar - Grandidier, Alfred, 1836 -1921 (Impr. nationale, 1891)

A history of Infusoria, including the Dismidiace and Diatomace, British and foreign - Archer, William, 1827 -1898 (Whitaker and co, 1861)

A history of Infusoria : including the Dismidiaceoe and Diatomaceoe, British and foreign - Arlidge, J. T. 1822 -1899 (Whittaker, 1861)

Horticulture Northwest - Northwest Ornamental Horticultural Society (Northwest Ornamental Horticultural Society, 1985)

Hortus Mortolensis : enumeratio plantarum in Horto Mortolensi cultarum = Alphabetical catalogue of plants growing in the garden of the late Sir Thomas Hanbury ... at La Mortola, Ventimiglia, Italy - Berger, Alwin, 1871 -1931 (West, Newman, 1912)

A host index of Mississippi plant diseases - United States. Plant Disease Survey. (Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1947)

Host index to non-fungous diseases of plants in China - United States. Plant Disease Survey. (Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1952)

hu bei en shi yao yong zhi wu zhi 湖北恩施药用植物志 - Fang, Zhixian & Liao Chaolin 方志先，廖朝林 (hu bei ke xue ji shu chu ban she湖北科学技术出版社, 2006)

hu bei ye sheng dian fen zhi wu - Zhongguo ke xue yuan wu han zhi wu yuan (hu bei ren ming chu ban she)

hu nan lin ye - Hunan lin xue yuan (gao deng jiao yu chu ban she, 1959)

hu nan ye sheng zhi wu - Hunan sheng shang ye ting (hu nan sheng ke xue ji shu pu ji xie hui chu ban)

huang he zhong you huang tu qu zhi wu ming lu - Zhongguo ke xue yuan. Xi bei sheng wu tu rang yan jiu suo zhi wu zu bian (zhong guo ke xue yuan chu ban)

I. H. Burkill diary, 1913-1925 - Burkill. I. H. (Isaac Henry), 1870 -1965 (1925)

Icones plantarum formosanarum nec non et contributiones ad floram formosanam; or, Icones of the plants of Formosa, and materials for a flora of the island, based on a study of the collections of the Botanical survey of the Government of Formosa - Taiwan. Shokusankyoku. (Pub. by the Bureau of Productive Industry, Government of Formosa, 1921)

Icones plantarum formosanarum nec non et contributiones ad floram formosanam : or, Icones of the plants of Formosa, and materials for a flora of the island, based on a study of the collections of the Botanical survey of the Government of Formosa - Taiwan. Shokusankyoku. (Bureau of Productive Industry, Government of Formosa, 1911)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1949)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son & Co, 1900)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (Balliére, Tindall & Cox, 1894)

An illustrated dictionary of medicine, biology and allied sciences ... by George M. Gould. 5th ed., with additions and corrections - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son, 1907)

The illustrated field guide to ferns and allied plants of the British Isles - Jermy, A C (Natural History Museum Publications, 1991)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the Pacific States: Washington, Oregon, and California - Abrams, Le Roy, 1874 -1956 (Stanford University Press, 1923)

Illustrierte Flora von Nord- und Mittel-Deutschland, mit einer Einführung in die Botanik - Potonié, H. (Henry), 1857 -1913 (J. Springer, 1889)

Important sale : Hardy American plants and Carolina mountain wildings - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1940)

Index animalium; sive, Index nominum quae ab A. D. MDCCLVIII generibus et speeiebus animalium imposita sunt - Sherborn, Charles Davies, 1861 -1942 (e typographio academico, 1892)

Index animalium; sive, Index nominum quae ab A. D. MDCCLVIII generibus et speeiebus animalium imposita sunt - Sherborn, Charles Davies, 1861 -1942 (e typographio academico, 1758)

Index : appendix to flora of the Columbia County area, New York - McVaugh, Rogers, 1909 -2009 (University of the State of New York, 1958)

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc - Christensen, Carl, 1872 -1942 (H. Hagerup, 1906)

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc - Christensen, Carl, 1872 -1942 (H. Hagerup, 1913)

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc - Christensen, Carl, 1872 -1942 (H. Hagerup, 1934)

Index Rafinesquianus : the plant names published by C. S. Rafinesque with reductions, and a consideration of his methods, objectives, and attainments - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Arnold Arboretum of Harvard University, 1949)

Index Seminum horti regii Botanici Acadici Conimbricensis ... mutuae commutationi oblatus - Universidade de Coimbra. Instituto Botânico. (Typis Academicis, 1931)

Index to Plant disease reporter supplements 210-217, 1952 - United States. Plant Disease Survey. (Plant DIsease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1953)

Index to supplements XXVI-XXX, Plant disease bulletin 1923 - United States. Plant Disease Survey. (Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1923)

An index to the scientific contents of the Journal and Proceedings of the Academy of Natural Sciences of Philadelphia [1817-1910] Published in commemoration of the centenary of the academy, March 21, 1912 - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences, 1912)

Indicador de madeiras e plantas uteis do Brasil - Teixeira da Fonseca, Eurico, 1871 - (Officinas graphicas Villas-Boas & co, 1922)

The indigenous trees of the Hawaiian Islands - Rock, Joseph F. (Joseph Francis), 1884 -1962 (1913)