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Species not transmutable, nor the result of secondary causes being a critical examination of Mr. Darwin's work entitled "Origin and variation of species" - Bree, Charles Robert, 1811 -1886 (Groombridge, 1860)

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Spolia zeylanica - Colombo Museum (Colombo Museum, 1918)

Sprawozdanie Komisyi Fizyograficznej (1892)

Sprawozdanie Komisyi Fizyograficznej (1894)

Sprawozdanie Komisyi Fizyograficznej (1904)

Sprawozdanie Komisyi Fizyograficznej (1905)

Sprawozdanie Komisyi Fizyograficznej (1907)

Sprawozdanie Komisyi Fizyograficznej (1908)

Sprawozdanie Komisyi Fizyograficznej (1909)

Sprawozdanie Komisyi Fizyograficznej (1910)

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Südamerikanische Nymphalidenraupen Versuch eines natürlichen Systems der Nymphaliden - Müller, Wilhelm (G. Fischer, 1886)

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A synonymic list of all the British butterflies and moths - Doubleday, Henry, 1808 -1875 (Newman, 1862)

Synonymic list of British Lepidoptera - South, Richard, 1846 -1932 (West, Newman, 1884)

Synonymic list of British Lepidoptera. Compiled in conformity with the law of priority - South, Richard, 1846 -1932 (West, Newman, 1884)

A synonymic list of British Lepidoptera, including the names and synonymes of all these insects, excepting the family Tineidae. (Printed on one side only, so as to be used for labels) - Doubleday, Henry (J. Van Voorst, 1850)

A synonymic list of the Nearctic Rhopalocera - Dos Passos, Cyril F. (Cyril Franklin), 1887 -1986 (Lepidopterists' Society, 1964)

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Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall, 1835)

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Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall, 1832)

Synopsis of the contents of the British Museum - British Museum (printed by G. Woodfall, 1837)

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Systema glossatorum secundum ordines, genera, species, adiectis, synonymis, locis, observationibus, descriptionibus - Fabricius, Johann Christian, 1745 -1808 (C. Reichard, 1938)

A systematic catalogue of British insects : being an attempt to arrange all the hitherto discovered indigenous insects in accordance with their natural affinities. Containing also the references to every English writer on entomology, and to the principal foreign authors. With all the published British genera to the present time - Stephens, James Francis, 1792 -1853 (Baldwin and Cradock, 1829)

A systematic catalogue of British insects : being an attempt to arrange all the hitherto discovered indigenous insects in accordance with their natural affinities - Stephens, James Francis, 1792 -1853 (Baldwin and Cradock, 1829)

Systematische Bearbeitung der Schmetterlinge von Europa, zugleich als Text, Revision und Supplement zu Jakob Hübner's Sammlung europäischer Schmetterlinge - Hübner, Jacob, 1761 -1826 (In Commission bei G. J. Manz, 1843)

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Systematische übersicht der Vögel Bayerns mit Rucksicht auf das örtliche und quantitative Vorkommen der Vögel, ihre Lebensweise, ihren zug und ihre Abänderungen - Blasius, Rudolf, 1842 -1907 (Kommissionsverlag von R. Oldenbourg, 1891)

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Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1867)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1877)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1881)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1883)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1884)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1886)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1889)