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

Hedwigia (Verlag und Druck von C. Heinrich, 1913)

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

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

Hedwigia (Verlag und Druck von C. Heinrich, 1917)

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

Hedwigia (Verlag und Druck von C. Heinrich, 1922)

Herbarium : Organ zur Förderung des Austausches wissenschaftlicher Exsiccatensammlungen (Theodor Oswald Weigel, 1908)

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)

Hilfsbuch für das Sammeln und Präparieren der niederen Kryptogamen, mit besonderer Berücksichtigung der Verhältnisse in den Tropen - Lindau, Gustav, 1866 -1923 (Gebrder Borntraeger, 1904)

Himalayan journals; or, Notes of a naturalist in Bengal, the Sikkim and Nepal Himalayas, the Khasia Mountains, &c - Hooker, Joseph Dalton, 1817 -1911 (J. Murray, 1854)

Histoire naturelle de la France (E. Deyrolle, 1896)

Histoire naturelle des annelés marins et d'eau douce - Quatrefages, A. de (Armand), 1810 -1892 (Librairie encyclopédique de Roret, 1889)

Histologische Beiträge - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1888)

Histologische Beiträge - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1889)

Histologische Beiträge - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1892)

Histologische Beiträge - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1893)

Historia fisica y politica de Chile segun documentos adquiridos en esta republica durante doce años de residencia en ella y publicada bajo los auspicios del supremo gobierno - Gay, Claudio, 1800 -1873 (En casa del autor, 1844)

Historia fisica y politica de Chile segun documentos adquiridos en esta republica durante doce anos de residencia en ella y publicada bajo los auspicios del supremo gobierno - Gay, Claudio, 1800 -1873 (En casa del autor, 1852)

Historia natural : la creación - Brehm, Alfred Edmund, 1829 -1884 (Montaner y Simón, 1880)

History of botany, 1530-1860 - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1906)

History of botany (1530-1860) - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1890)

History of botany (1530-1860) - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1906)

History of botany (1530-1860) - Sachs, Julius, 1832 -1897 (Clarendon Press, 1890)

History of infusoria, including the desmidiaceae and diatomaceae, British and foreign - Arlidge, J. T. 1822 -1899 (Whitaker and Co, 1861)

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)

A history of infusorial animalcules, living and fossil ... - Pritchard, Andrew, 1804 -1882 (Whittaker and co, 1852)

History of Pasadena, comprising an account of the native Indian - McClatchie, Alfred James, (Pasadena history company, 1895)

History of Pasadena, comprising an account of the native Indian, the early Spanish, the Mexican, the American, the colony, and the incorporated city, occupancies of the Rancho San Pasqual, and its adjacent mountains, canyons, waterfalls and other objects of ... interest: being a complete and comprehensive histo-cyclopedia of all matters pertaining to this region - McClatchie, Alfred James, (Pasadena History Co, 1895)

History of systematic botany in Australasia : proceedings of a symposium held at the University of Melbourne, 25-27 May 1988 - Short, P. S. (Philip S.) (Australian Systematic Botany Society, 1990)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1882)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1885)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1887)

History of the British Freshwater Algae, including descriptions of the Desmideae and Diatomaciae - Hassall, Arthur Hill, 1817 -1894 (Taylor, 1852)

A history of the British freshwater Algæ, including descriptions of the Desmideæ and Diatomaceæ ... - Hassall, Arthur Hill, 1817 -1894 (S. Highley ; [etc., etc.], 1845)

A history of the British freshwater Algæ, including descriptions of the Desmideæ and Diatomaceæ ... - Hassall, Arthur Hill, 1817 -1894 (Taylor, Walton, and Maberly, 1852)

A history of the British freshwater Algæ, including descriptions of the Desmideæ and Diatomaceæ - Hassall, Arthur Hill, 1817 -1894 (S. Highley, 1845)

Holiday excursions of a naturalist, forming a guide-book to the natural history of the inland and littoral - Garner, Robert, 1808 -1890 (Hardwicke, 1867)

House, garden and field, a collection of short nature studies - Miall, L. C. (Louis Compton), 1842 -1921 (Arnold, 1904)

How to collect shells, a symposium - American Malacological Union. (1961)

How to know the fresh-water algae; an illustrated key for identifying the more common fresh-water algae to genus, with hundreds of species named pictured and with numerous aids for their study - Prescott, G. W. (Gerald Webber), 1899 -1988 (W.C. Brown Co, 1954)

How to know the seaweeds - Dawson, E. Yale (Elmer Yale), 1918 -1966 (W.C. Brown Co, 1956)

I. Romance of the flora of New Zealand. II. Farthest north in New Zealand - a memorable tour - Fenwick, George, (Otago Daily Times and Witness, 1922)

Iberus : revista de la Sociedad Española de Malacología - Sociedad Española de Malacología. (La Sociedad, 1981)

Iberus : revista de la Sociedad Española de Malacología - Sociedad Española de Malacología. (La Sociedad, 1988)

Iberus : revista de la Sociedad Española de Malacología - Sociedad Española de Malacología. (La Sociedad, 1990)

Iberus : revista de la Sociedad Española de Malacología - Sociedad Española de Malacología. (La Sociedad, 2003)

Icones of Japanese algae - Okamura, Kintaro, 1867 -1935 (Kazamashobo, 1909)

Icones of Japanese algae - Okamura, Kintaro, 1867 -1935 (Kazamashobo, 1912)

Icones of Japanese algae - Okamura, Kintaro, 1867 -1935 (Kazamashobo, 1916)

Iconographie du règne animal de G. Cuvier, ou, Représentation d'après nature de l'une des espèces les plus et souvent non encore figurées de chaque genre d'animaux : avec un texte descriptif mis au courant de la science : ouvrage pouvant servir d'atlas a tous les traites de zoologie - Cuvier, Georges, baron, 1769 -1832 (Chez J.B. Baillière, 1829)

An Identification guide to Alberta aquatic plants - Alberta. Alberta Environmental Protection. (Alberta Environmental Protection, Pesticide Management Branch, 1994)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1918)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1922)