A guide to the study of fresh-water biology, with special reference to aquatic insects and other invertebrate animals and phyto-plankton - Needham, James G. (James George), 1868 -1957 (New York, Comstock Pub. Co, 1941)

A handbook of cryptogamic botany / by Alfred W. Bennett and George Murray - Bennett, Alfred W. (Alfred William), 1833 -1902 (Longmans, Green, and Co, 1889)

A handbook of cryptogamic botany - Bennett, Alfred W. (Alfred William), 1833 -1902 (Longmans, Green, 1889)

A handbook of systematic botany - Warming, Eugenius, 1841 -1924 (Macmillan & Co, 1895)

A handbook of systematic botany - Warming, Eugenius, 1841 -1924 (Swan, 1904)

Handbuch der Naturgeschichte aller drei Reiche, fur Lehrer and Lernende, fur Schule und Haus - Bromme, Traugott, 1802 -1866 (1850)

Handbuch der Petrefaktenkunde - Quenstedt, Fr. Aug. von (Friedrich August), 1809 -1889 (H. Laupp, 1885)

Handbuch der systematischen botanik, mit besonderer berücksichtigung der arzneipflanzen. Bd. 1 - Luerssen, Christian, 1843 -1916 (H. Haessel, 1879)

Handbuch für Naturaliensammler : Eine Praxis der Naturgeschichte ; Mit 12 Farbtafeln, 31 Tafeln nach Zeichnungen, und Photographien, sowie 465 Textabbildungen nach Zeichnungen, Photographien und Mikrophotographien des Verfassers - Bade, E. (Fritz Pfenningstorff, 1913)

A handy-book to the collection and preparation of freshwater and marine algae, diatoms, desmids, fungi, lichens, mosses and other of the lower cryptogamia : with instructions for the formation of an herbarium - Nave, Johann, 1831 -1864 (Robert Hardwicke, 1867)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1866)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1874)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1884)

Hedwigia (Verlag und Druck von C. Heinrich, 1865)

Hedwigia (Verlag und Druck von C. Heinrich, 1867)

Hedwigia (Verlag und Druck von C. Heinrich, 1868)

Hedwigia (Verlag und Druck von C. Heinrich, 1869)

Hedwigia (Verlag und Druck von C. Heinrich, 1872)

Hedwigia (Verlag und Druck von C. Heinrich, 1874)

Hedwigia (Verlag und Druck von C. Heinrich, 1878)

Hedwigia (Verlag und Druck von C. Heinrich, 1889)

Hedwigia (Verlag und Druck von C. Heinrich, 1890)

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

Hedwigia (Verlag und Druck von C. Heinrich, 1893)

Hedwigia (Verlag und Druck von C. Heinrich, 1894)

Hedwigia (Verlag und Druck von C. Heinrich, 1895)

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

Hedwigia (Verlag und Druck von C. Heinrich, 1901)

Hedwigia (Verlag und Druck von C. Heinrich, 1902)

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

Hedwigia (Verlag und Druck von C. Heinrich, 1905)

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

Hedwigia (Verlag und Druck von C. Heinrich, 1910)

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, 1918)

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

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1906)

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

The history of creation; or, The development of the earth and its inhabitants by the action of natural causes : a popular exposition of the doctrine of evolution in general, and of that of Darwin, Goethe and Lamarck in particular - Haeckel, Ernst, 1834 -1919 (D. Appleton, 1876)

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 Infusoria, living and fossil: arranged according to "Die Infusionsthierchen" of C.G. Ehrenberg - Pritchard, Andrew, 1804 -1882 (Whittaker, 1845)

A history of infusoria, living and fossil. Arranged according to the "Infusionsthierchen" of C. H. Ehrenberg; containing coloured engravings, illustrative of all the genera, and descriptions of all the species in that work, with several new ones, to which is appended an account of those recently discovered in the chalk formations - Pritchard, Andrew, 1804 -1882 (Whittaker, 1842)

A history of infusoria, living and fossil: arranged according to "Die Infusionsthierchen" of C.G. Ehrenberg. Containing coloured engravings, illustrative of all the genera, and descriptions of all the species in that work, with several new ones. To which is appended an account of those recently discovered in the chalk formations - Ehrenberg, Christian Gottfried, 1795 -1876 (Whittaker and co, 1841)

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)

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)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1951)

Index Desmidiacearum citationibus locupletissimus atque bibliographia - Nordstedt, Carl Peter Ulrik, 1793 -1854 (Typis Berlingianis, 1896)

Index Desmidiacearum citationibus locupletissimus atque bibliographia. Supplementum / C.F.O. Nordstedt - Nordstedt, Carl Peter Ulrik, 1793 -1854 (Typis Berlingianis, 1908)

Index herbariorum. Part II, Collectors - International Bureau For Plant Taxonomy; Nomenclature (Bohn, Scheltema & Holkema, 1954)

Index herbariorum. Part II, Collectors - International Bureau For Plant Taxonomy; Nomenclature (Bohn, Scheltema & Holkema, 1983)

Index herbariorum - International Association for Plant Taxonomy (Published and Distributed for International Association for Plant Taxonomy by New York Botanical Gardens, 1990)

Index to plant chromosome numbers - Missouri Botanical Garden. (Missouri Botanical Garden, 1985)

Index to plant chromosome numbers - Missouri Botanical Garden. (Missouri Botanical Garden, 1996)

Das indische Phytoplankton - Karsten, George, 1863 -1937 (G. Fischer, 1907)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1902)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1904)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1905)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)