Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 1918)

Meyers Konversations-Lexikon : ein Nachschlagewerk des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Bibliographisches Institut, 1896)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1883)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1886)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1887)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1888)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1889)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1892)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1893)

Mitteilungen aus dem Botanischen Museum der Universität Zürich - Universität Zürich. Botanisches Museum. (Botanisches Museum der Universität Zürich], 1914)

Mitteilungen aus dem Botanischen Museum der Universität Zürich - Universität Zürich. Botanisches Museum. (Botanisches Museum der Universität Zürich], 1920)

Mitteilungen aus den Botanischen Staatsinstituten in Hamburg - Botanische Staatsinstitut (Hamburg, Germany) (L. Gräfe & Sillem, 1910)

Mitteilungen der Bayerischen Botanischen Gesellschaft zur Erforschung der Heimischen Flora (E.V.) - Bayerische Botanische Gesellschaft zur Erforschung der Heimischen Flora. (Selbstverlag der Gesellschaft, 1906)

Mitteilungen der Bayerischen Botanischen Gesellschaft zur Erforschung der Heimischen Flora (E.V.) - Bayerische Botanische Gesellschaft zur Erforschung der Heimischen Flora. (Selbstverlag der Gesellschaft, 1913)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1980)

Mitteilungen der Kaiserlich-Königlichen Geographischen Gesellschaft - Kaiserlich-Königliche Geographische Gesellschaft. (1859)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1873)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1909)

Mitteilungen des Thüringischen Botanischen Vereins n. F - Thüringische Botanische Gesellschaft. (Im Selbstverlag des Vereins, 1897)

Mitteilungen des Thüringischen Botanischen Vereins n. F - Thüringische Botanische Gesellschaft. (Im Selbstverlag des Vereins, 1910)

Mitteilungen des Thüringischen Botanischen Vereins n. F - Thüringische Botanische Gesellschaft. (Im Selbstverlag des Vereins, 1914)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1872)

Le Monde des plantes - Académie internationale de géographie botanique. (Impr. Edmond Monnoyer, 1891)

Le Monde des plantes - Académie internationale de géographie botanique. (Impr. Edmond Monnoyer, 1894)

Le Monde des plantes - Académie internationale de géographie botanique. (Impr. Edmond Monnoyer, 1895)

Monograph of the Coccidæ of the British Isles - Newstead, Robert, 1859 -1947 (Printed for the Ray society, 1901)

The moths of the British Isles - South, Richard, 1846 -1932 (F. Warne, 1900)

The moths of the British Isles - South, Richard, 1846 -1932 (Frederick Warne & Co, 1920)

Mountain and moorland - Thomson, J. Arthur (John Arthur), 1861 -1933 (Society for Promoting Christian Knowledge, 1921)

Museum bulletin - New York State Museum. (University of the State of New York, 1915)

Die Mysterien der Europäischen Insectenwelt. Ein geheimer Schlüssel für Sammler aller Insectenordnungen und Stände, behufs des Fangs, des Aufenthalts-orts, der Wohnung, Tag- und Jahreszeit ... - Gistel, Johannes, 1809 - (Druck und Verlag von Tobias Dannheimer, 1856)

Názorná kvĕtena zemí koruny c̆eské, obsahujíci téz̆ c̆elnĕjs̆í rostliny cizozemské, pĕstované u nás pro uz̆itek a okrasu, se zvlás̆tním zr̆etelem k zjevům z̆ivotním - Polivka, František, 1923 (Nákl. R. Prombergra, 1904)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1955)

Nachträge zur Flora von Nieder-Oesterreich - Neilreich, August, 1803 -1871 (K.K. Zoologisch-botanische Gesellschaft, 1866)

Die Nahrpflanzen der in Europa lebenden Raupen der Grossschmetterlinge und ihre Bewohner - Meyer, Fr. (Entomologische Zeitschrift, 1919)

Die Natur - Müller, Karl, 1818 -1899 (G. Schwetschke, 1852)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2005)

Natur und Offenbarung - Vermittlung Zwischen Naturforschung und Glauben. (Aschendorff, 1898)

A natural arrangement of British plants : according to their relations to each other as pointed out by Jussieu, De Candolle, Brown, &c - Gray, Samuel Frederick, 1766 -1828 (Baldwin, Cradock, and Joy, 1821)

A natural history of British grasses - Lowe, E. J. (Edward Joseph), 1825 -1900 (Groombridge, 1862)

A natural history of British grasses - Lowe, E. J. (Edward Joseph), 1825 -1900 (Groombridge, 1858)

A natural history of British grasses - Lowe, E. J. (Edward Joseph), 1825 -1900 (John C. Nimmo, 1891)

The natural history of British meadow and pasture grasses, with an account of their economy and agricultural indication - Buckman, James, 1816 -1884 (Hamilton, Adams, 1858)

The natural history of Dee Side and Braemar - Lankester, Edwin, 1814 -1874 ([Printed for private circulation by Bradbury and Evans], 1855)

The natural history of Dee Side and Braemar - Lankester, Edwin, 1814 -1874 (Printed for private circulation [by Bradbury and Evans], 1855)

The natural history of plants : their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie & son, limited, 1902)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun ... Tr. and ed. by F.W. Oliver ... with the assistance of Marian Busk ... and Mary F. Ewart ... With about 2000 original woodcut illustrations and sixteen plates in colours - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt and company, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt and Company, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun ... Tr. and ed. by F.W. Eliver ... with the assistance of Marian Busk ... and Mary F. Ewart - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1894)

The natural history of plants; their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1894)

The natural history of plants, their forms, growth reproduction, and distribution; from the German of Anton Kerner von Marilaun - Kerner von Marilaun, Anton, 1831 -1898 (Blackie & Son, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1902)

The natural history of plants; their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1896)

A natural history of the British Lepidoptera : a text-book for students and collectors - Tutt, James William, 1858 -1911 (S. Sonnenschein, 1905)

The Natural History of the Scarborough district - Rimington, F. C. (Scarborough Field Naturalists' Society, 1953)

Naturalientausch, &c No. 1 - 12 - Opiz, Philipp Maximilian. (1823)

Naturalientausch, &c No. 1 - 12 - Opiz, Philipp Maximilian. (1824)

Naturalientausch, &c No. 1 - 12 - Opiz, Philipp Maximilian. (1825)

Naturalientausch, &c No. 1 - 12 - Opiz, Philipp Maximilian. (1826)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1875)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1878)

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

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1887)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1888)

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

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1890)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1893)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1896)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1897)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1898)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1899)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1902)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1903)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1904)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1907)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1910)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1912)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1913)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1914)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1915)