Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Verlag des Bibliographischen Instituts, 1890)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1875)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Griffith, J. W. (John William) (John Van Voorst, 1856)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1883)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1882)

Mindeskrift i anledning af hundredaaret for Japetus Steenstrups fodsel udg. af en kreds af naturforskere ved Hector F.E. Jungersen og Eug. Warming. Udgivelsen bekostet af Carlsbergfondet - Warming, Eugenius, 1841 -1924 (B. Lunos bogtrykkeri, 1914)

Mionelminthes, Trichoplax und Trematodes - Pagenstecher, H. Alexander (Heinrich Alexander), 1825 -1889 (C.F. Winter, 1890)

Mionelminthes, Trichoplax und Trematodes - Pagenstecher, H. Alexander (Heinrich Alexander), 1825 -1889 (C.F. Winter, 1893)

Miscellanea entomologica; revue entomologique internationale - Union entomologique. (1898)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1957)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1961)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1965)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1891)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1902)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1885)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1887)

Mlekopitaiushchiia Kavkazskago kraia - Sakartvelos muzeumi (Impr. d'État], 1920)

Le monde de la mer - Moquin-Tandon, Alfred, 1804 -1863 (L. Hachette, 1866)

Le monde de la mer - Frédol, Alfred. (L. Hachette et cie, 1865)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1897)

A monograph of the seal-islands of Alaska - Elliott, Henry Wood, 1846 -1930 (Govt. Print. Off, 1882)

Monographie der Nematoden - Schneider, Anton, 1831 -1890 (G. Reimer, 1866)

Monographs of North American Rodentia - Coues, Elliott, 1842 -1899 (Govt. print. off, 1877)

Monographs of North American rodentia - Coues, Elliott, 1842 -1899 (G.P.O, 1877)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1808)

Morphologische Arbeiten (G. Fischer, 1892)

Morphologische Arbeiten (G. Fischer, 1896)

Morphologische Arbeiten (G. Fischer, 1898)

Morphologisches Jahrbuch (Wilhelm Engelmann, 1876)

The morphology and evolutional significance of the pineal body; being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence - Tilney, Frederick, 1875 -1938 (The Wistar Institute of Anatomy and Biology, 1919)

Mrs. Loudon's Entertaining naturalist, being popular descriptors, tales, and anecdotes of more than five hundred animals - Dallas, W. S. (William Sweetland), 1824 -1890 (Bell & Daldy, 1867)

Musée Vrolik. Catalogue de la collection d'anatomie humaine, comparée et pathologique de M.M. Ger. et W. Vrolik ... - Vrolik, W. (Willem), 1801 -1863 (Impr. de W. J. de Roever Kröber, 1865)

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

The museum of natural history; being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (J. S. Virtue, 1877)

The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - White, Adam, 1817 -1879 (William MacKenzie, 1869)

The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadruped, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - White, Adam, 1817 -1879 (Mackenzie, 1859)

My happy hunting grounds, with notes on sport and natural history - Gathorne-Hardy, A. E. (Alfred Erskine), 1845 -1918 (Longmans, Green and Co, 1914)

Narrative of a journey across the Rocky Mountains, to the Columbia River, and a visit to the Sandwich Islands, Chili, &c.; with a scientific appendix - Townsend, John Kirk, 1809 -1851 (H. Perkins, 1839)

National contingency plan for response to unusual marine mammal mortality events - U.S. Fish; Wildlife Service (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, [Office of Protected Resources], 1996)

The National geographic magazine - National Geographic Society (U.S.) (National Geographic Society, 1916)

The native and wild mammals of Connecticut - Adams, Sherman W. (Sherman Wolcott), 1836 -1898 (Case, Lockwood, & Brainard, 1896)

The native mammals of Rhode Island - Newport Natural History Society. (1900)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2002)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2011)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1896)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1898)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1904)

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)

Natural history - Fletcher, L. 1854 -1921 (Printed by order of the Trustees of the British Museum, 1910)

Natural history Mammalia - Gosse, Philip Henry, 1810 -1888 (Society for Promoting Christian Knowledge, 1848)

The natural history and behavior of the California sea lion - Peterson, Richard S. (American Society of Mammalogists, 1967)

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

Natural history. A manual of zoölogy for schools, colleges, and the general reader - Tenney, Sanborn, 1827 -1877 (Scribner, Armstrong & co, 1872)

The natural history of animals : (class Mammalia–animals which suckle their young) in word and picture - Vogt, Karl Christoph, 1817 -1895 (Blackie & son, ltd, 1887)

The natural history of animals : (class Mammalia–animals which suckle their young), in word and picture - Vogt, Karl Christoph, 1817 -1895 (Blackie & Son, 1889)

The natural history of animals (class Mammalia-animals which suckle their young), in word and picture - Vogt, Karl Christoph, 1817 -1895 (Blackie, 1887)

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)

A natural history of British and foreign quadrupeds - Fennell, James Hamilton (J. Thomas, and sold by T. Tegg, 1843)

A natural history of British and foreign quadrupeds; containing many modern discoveries, original observations, and numerous ancedotes - Fennell, James Hamilton (J. Thomas, 1841)

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)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1842)

Natural history of New York (D. Appleton, 1842)

A natural history of the animal kingdom being a systematic and popular description of the habits, structure, and classification of animals, from the lowest to the highest forms. Arranged according to their organisation - Gray, John Edward, 1800 -1875 (Charles Griffin and company, 1860)

Natural history of the animal kingdom for the use of young people : in three parts, comprising I. Mammalia : II. Birds : Part III. Reptiles, amphibia, fishes, insects, worms, molluscs, zoophytes, &c. : with 91 coloured plates, including about 850 figures, and numerous additional illustrations in the text - Kirby, W. F. (William Forsell), 1844 -1912 (E. & J.B. Young and Co, 1889)

The natural history of the European seas. By the late Prof. Edw. Forbes... - Forbes, Edward 1815 -1854 (J. Van Voorst, 1859)

The natural history of the raw materials of commerce. Illustrated by synoptical tables and a folio chart; a copious list of commercial products and their synonymes in the principal European and Oriental languages; a glossary and an index. With an industrial map printed in colours - Yeats, John (G. Philip, 1887)

Natural history - Pliny, the Elder, 23 or 24 -79 (W. Heinemann, 1938)

Natural science : a monthly review of scientific progress (Macmillan and Company [etc.], 1896)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1864)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1886)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1889)