A monograph of the British naked-eyed Medusæ : with figures of all the species - Forbes, Edward 1815 -1854 (Printed for the Ray society, 1848)

A monograph of the British nudibranchiate Mollusca : with figures of all the species - Ray Society. (Printed for the Ray Society, 1845)

A monograph of the British Spongiadæ - Norman, Alfred Merle, 1831 -1918 (Pub. for the Ray society by R. Hardwicke, 1864)

A monograph of the British Spongiadæ - Norman, Alfred Merle, 1831 -1918 (Pub. for the Ray society by R. Hardwicke, 1866)

A monograph of the existing crinoids - Clark, Austin Hobart, 1880 -1954 (Govt. Print. Off, 1921)

A monograph of the existing crinoids - Clark, Austin Hobart, 1880 -1954 (Govt. Print. Off, 1967)

A monograph of the gymnoblastic or tubularian hydroids / by George James Allman - Allman, George James, 1812 -1898 (1871)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1902)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1903)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1906)

Monograph on the fossil reptilia of the London clay - Owen, Richard, 1804 -1892 (Palaeontographical Society, 1849)

A monograph on the sub-class Cirripedia, with figures of all the species - Darwin, Charles, 1809 -1882 (Ray society, 1851)

Monographiæ phanerogamarum : Prodromi nunc continuatio, nunc revisio - Candolle, Alphonse de, 1806 -1893 (vol.1-8, G. Masson ; vol.9, Masson & Cie, 1891)

Monographie der Medusen - Haeckel, Ernst, 1834 -1919 (G. Fischer, 1879)

Monographie des Cirrhipèdes ou Thécostracés - Gruvel, A. (Abel), 1870 -1941 (Masson et cie, 1905)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2006)

The Monthly microscopical journal : transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (Robert Hardwicke, 1876)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1875)

More letters of Charles Darwin : a record of his work in a series of hitherto unpublished letters - Darwin, Charles, 1809 -1882 (D. Appleton and Company, 1903)

More letters of Charles Darwin : a record of his work in a series of hitherto unpublished letters - Darwin, Charles, 1809 -1882 (J. Murray, 1903)

More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters - Darwin, Charles, 1809 -1882 (J. Murray, 1903)

Morphologie und biologie der algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1904)

Morphologie und Biologie der Algen - Oltmanns, Friedrich, 1860 -1945 (Fischer, 1922)

Morphologie und Biologie der Algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1922)

Morphologie und biologie der algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1905)

Morphologische studien über die gestaltungs-gesetze der naturkörper überhaupt und der organischen insbesondere ... - Bronn, H. G. (Heinrich Georg), 1800 -1862 (C.F. Winter'sche Verlagshandlung, 1858)

Morphology of invertebrate types - Petrunkevitch, Alexander, 1875 -1964 (MacMillan, 1916)

Morphology of invertebrate types - Petrunkevitch, Alexander, 1875 -1964 (Macmillan Company, 1916)

Musei Doevereniani catalogus - Brugmans, Sebald Justinus, 1763 -1819 (1785)

Muséum-Demidoff (mis en ordre systématique et décrit par G. Fischer) : Ou catalogue ... des curiosités de la Nature et de l'Art. données à l'Université impériale de Moscou par ... P. de Demidoff - Fischer von Waldheim, Gotthelf, 1771 -1853 (1807)

Museum Leskeanum : regnum animale quod ordine systematico - Leske, Nathanael Gottfried, 1751 -1786 (Sumptibus haeredum I.G. Mülleri, 1789)

Museum Meyerianum, sive Catalogus rerum naturalium, et nonnullarum artefactarum, quas ... suos in usus collegit Christianus Paulus Meyer, mercator quondam apud Amstelædamenses diligentissimus. Quarum publica fiet auctio, in ædibus defuncti, du 4 octobris 1802 et seqq - Meyer, Christianus Paulus. (B. Wild et J. Altheer [etc, 1802)

Museum Normanianum, or A catalogue of the invertebrata of Europe, and the Arctic and North Atlantic oceans, which are contained in the collection of the Rev. Canon A. M. Norman, ... . I.-XII. Printed for private distribution - Norman, Alfred Merle, 1831 -1918 (Morton, printer, 1886)

Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft - Deutsche Malakozoologische Gesellschaft (Verlag W. Küchler, 1885)

Narrative of the surveying voyages of His Majesty's Ships Adventure and Beagle between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe - Darwin, Charles, 1809 -1882 (Henry Colburn, 1839)

Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle between the years 1826 and 1836 : describing their examination of the southern shores of South America and the Beagle's circumnavigation of the globe : in three volumes - Darwin, Charles, 1809 -1882 (Henry Colburn, 1839)

Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe - Darwin, Charles, 1809 -1882 (H. Colburn, 1839)

Narrative of the voyage of H. M. S. Rattlesnake, commanded by the late Captain Owen Stanley ... during the years 1846-50 ... To which is added Mr. E. B. Kennedy's expedition for the exploration of the Cape York Peninsula - White, Adam, 1817 -1879 (T. & W. Boone, 1852)

National Museum, Victoria, Marine Invertebrate Registers - Museums Victoria (National Museum of Victoria, 1989)

National Museum, Victoria, Marine Invertebrate Registers - Museums Victoria (National Museum of Victoria, 1882)

Das Nationalmuseum der Naturgeschichte zu Paris : von seinem ersten Ursprunge bis zu seinem jetzigen Glanze - Fischer von Waldheim, Gotthelf, 1771 -1853 (Verlegt bei Fridrich Esslinger, 1803)

Native animals of New Zealand - Powell, A. W. B. (Arthur William Baden) 1901 -1987 (Unity Press, 1947)

Natürliche Schöpfungsgeschichte. Gemeinverständliche wissenschaftliche Vorträge über die Entwicklungslehre ... über die Anwendung derselben auf den Ursprung des Menschen und andere damit zusammenhängende Grundfragen der Naturwissenschaft - Haeckel, Ernst, 1834 -1919 (1868)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1913)

Natural history - Bernard, Henry Meyners, 1853 -1909 (D. Appleton and company, 1897)

Natural history - Fletcher, L. 1854 -1921 (Printed by order of the Trustees of the British Museum, 1907)

The natural history and antiquities of Northumberland and so much of the county of Durham as lies between the rivers Tyne and Tweed; commonly called North Bishoprick - Wallis, John, 1714 -1793 (Printed for the author by W. and W. Strahan, sold by S. Bladon, 1769)

Natural history - Lydekker, Richard, 1849 -1915 (Hutchinson, 1897)

Natural history for the use of schools and families - Hooker, Worthington, 1806 -1867 (Harper & Brothers, 1860)

Natural history. For the use of schools and families - Hooker, Worthington, 1806 -1867 (Harper & Brothers, 1883)

Natural history for the use of schools and families - Hooker, Worthington, 1806 -1867 (Harper & Brothers, Publishers, 1864)

Natural history for the use of schools and families - Hooker, Worthington, 1806 -1867 (Harper & brothers, 1864)

The natural history of animals - Jones, Thomas Rymer, 1810 -1880 (John Van Voorst, 1845)

Natural history of animals. Containing brief descriptions of the animals figured on Tenney's Natural history tablets, but complete without the tablets - Tenney, Sanborn, 1827 -1877 (Scribner, Armstrong, 1875)

The natural history of animals: the animal life of the world in its various aspects and relations - Ainsworth-Davis, J. R. (James Richard), 1861 -1934 (The Gresham Publishing Company, 1903)

The natural history of dogs : Canidae or genus Canis of authors ; including also the genera Hyaena and Proteles - Smith, Charles Hamilton, 1776 -1859 (W.H. Lizars, 1839)

Natural history of Hawaii, being an account of the Hawaiian people, the geology and geography of the islands, and the native and introduced plants and animals of the group - Bryan, William Alanson, 1875 -1942 ([Printed for the author by] the Hawaiian gazette co., ltd, 1915)

The natural history of Ireland - Thompson, William, 1823 -1903 (Reeve, Benham and Reeve, 1849)

The natural history of Ireland - Thompson, William, 1823 -1903 (Reeve, Benham and Reeve, 1856)

The natural history of many curious and uncommon zoophytes : collected from various parts of the globe - Ellis, John, 1710? -1776 (Printed for Benjamin White and Son ... and Peter Elmsly, 1786)

The natural history of many curious and uncommon zoophytes, collected from the various parts of the globe by the late John Ellis - Ellis, John, 1710? -1776 (printed for Benjamin White and Son, 1786)