A handbook of British lepidoptera - Meyrick, Edward, 1854 -1938 (Maomillan, 1895)

Handbook of flower pollination : based upon Hermann Müller's work ʻThe fertilisation of flowers by insectsʼ - Knuth, Paul, 1854 -1899 (Clarendon Press, 1906)

Handbook of flower pollination based upon Hermann Müller's work 'The fertilisation of flowers by insects' - Knuth, Paul, 1854 -1899 (Clarendon Press, 1906)

Handbook of flower pollination based upon Hermann Müller's work The fertilisation of flowers by insects - Knuth, Paul, 1854 -1899 (Clarendon press, 1908)

Handbook of flower pollination based upon Hermann Müller's work The fertilisation of flowers by insects - Knuth, Paul, 1854 -1899 (Clarendon press, 1909)

A handbook to the order Lepidoptera - Kirby, W. F. (William Forsell), 1844 -1912 (E. Lloyd, limited, 1897)

Handbuch der Blütenbiologie, unter Zugrundelegung von Herman Müllers Werk: "Die Befruchtung der Blumen durch Insekten." - Knuth, Paul, 1854 -1899 (W. Engelmann, 1898)

Handbuch der entomologie - Schröder, Christoph Wilhelm Marcus, 1871 - (Gustav Fischer, 1912)

Handbuch der Morphologie der wirbellosen Tiere - Lang, Arnold, 1855 -1914 (G. Fischer, 1913)

Handbuch der paläarktischen Gross-Schmetterlinge für Forscher und Sammler - Standfuss, Maximilian Rudolph, 1854 - (G. Fischer, 1896)

Handbuch der Zoologie - Peters, Wilhelm C. H. (Wilhelm C. Hartwig), 1815 -1883 (W. Engelmann, 1875)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1863)

Handwörterbuch der Zoologie - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (F. Enke, 1887)

The Hawaiian forester and agriculturist - Hawaii. Board of Commissioners of Agriculture; Forestry. (Advertiser pub. co., ltd. [etc.], 1909)

High arctic insect-flower relations : the inter-relationships of arthropods and flowers at Lake Hazen, Ellesmere Island, N.W.T., Canada - Kevan, Peter G., 1944 - (University of Alberta, Dept. of Entomology, 1970)

Historia naturalis bulgarica - Bŭlgarska akademii︠a︡ na naukite. (Bulgarska akademiia na naukite, 1998)

The history of our British butterflies containing - a full bibliographical note of each species, with copious extracts from the old authors; and full descriptions of all the British species, their eggs, caterpillars, chrysalides and varieties, with a notice of their habits, localities, frequency, &c., &c - Dale, Charles William, 1851 -1906 (J. Kempster, 1890)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1834)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1947)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1903)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1897)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1908)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1910)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1913)