Metamorphoses of man and the lower animals - Quatrefages, A. de (Armand), 1810 -1892 (R. Hardwicke, 1864)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (1885)

The microscope - Hogg, Jabez, 1817 -1899 (1869)

The microscope : its history, construction, and application - Hogg, Jabez, 1817 -1899 (G. Routledge, 1867)

The microscope; its history, construction and application - Hogg, Jabez, 1817 -1899 (Routledge, 1867)

The microscope : its history, construction, and application ; being a familiar introduction to the use of the instrument and the study of microscopical science - Hogg, Jabez, 1817 -1899 (G. Routledge, 1858)

The microscope : its history, construction, and application, being a familiar introduction to the use of the instrument, and the study of microscopial science - Hogg, Jabez, 1817 -1899 (George Routledge, 1867)

The microscope : its history, construction, and application, being a familiar introduction to the use of the instrument and the study of microscopical science - Hogg, Jabez, 1817 -1899 (G. Routledge and Sons, 1871)

The microscope: its history, construction, and application, being a familiar introduction to the use of the instrument and the study of microscopial science - Hogg, Jabez, 1817 -1899 (Routledge, Warnes, and Routledge, 1859)

The microscope: its history, construction, and application being a familiar introduction to the use of the instrument and the study of microscopical sciences - Hogg, Jabez, 1817 -1899 (George Routledge and Sons, 1869)

The microscope, : its history, construction, and applications: being a familiar introduction to the use of the instrument, and the study of microsopical science - Hogg, Jabez, 1817 -1899 (G. Routledge, 1887)

Mionelminthes, Trichoplax und Trematodes - Pagenstecher, H. Alexander (Heinrich Alexander), 1825 -1889 (C.F. Winter, 1887)

Mission du Service Geographique de l'Armée pour la mesure d'un arc de méridien équatorial en Amérique du Sud sous le contrôle scientifique de l'Académie des Sciences, 1899-1906 - France. (Gauthier-Villars, Imprimeur Libraire du Bureau des Longitudes, de l'Ecole Polytechnique, 1910)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1881)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1886)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1908)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1913)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1869)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1878)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1890)

Monografia delle Nereidi fossile del M. Bolca : con 6 tavole litografiche / del D. A. B. Prof. Massalongo - Massalongo, Abramo, 1824 -1860 (Tipografia di Giuseppe Antonelli, 1855)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1900)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1908)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1910)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1915)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1922)

A monograph on the Polychaeta of Southern Africa - Day, J. H. (British Museum (Natural History), 1967)

A monograph on the Polychaeta of southern Africa - Day, J. H. (BM(NH), 1967)