Katalog der Bibliothek der Kaiserlichen Leopoldinisch-Carolinischen deutschen Akademie der Naturforscher - Leopoldinisch-Carolinische deutsche Akademie der Naturforscher. Bibliothek. (die Akademie, 1887)

Katalog der Eiersammlung, nebst Beschreibungeh der aussereuropäischen Eier - Nehrkorn, Adolph. (R. Friedler & Sohn, 1910)

Katalog der vögel welche im Naturhistorischen Museum in Colmar aufgestellt sind - Schneider, Gustav. (s.n, 1896)

Key to North American birds - Coues, Elliott, 1842 -1899 (1872)

Key to North American birds; containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Illustrated by 6 steel plates and upwards of 250 woodcuts - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1872)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland - Coues, Elliott, 1842 -1899 (Macmillan, 1884)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1887)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology, an outline of the structure and classification of birds, and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (D. Estes and Company, 1890)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1894)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1896)

Key to North American birds; containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary - Coues, Elliott, 1842 -1899 (Naturalists' agency, 1872)

Key to North American birds containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary - Coues, Elliott, 1842 -1899 (Naturalist's Agency, 1872)

Key to North American birds containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1884)

A key to the birds of Australia : with their geographical distribution - Hall, Robert, 1867 -1949 (Walker, May and Co, 1906)

A Key to the Birds of the Hawaiian Group - Bryan, William Alanson, 1875 -1942 (Bishop Museum Press, 1901)

A key to the birds of the lower Yangtse Valley, with popular descriptions of the species commonly seen - Gee, Nathaniel Gist, 1876 -1937 (Shanghai Mercury Limited, Print, 1917)

Key to the water birds of Florida - Cory, Charles B. (Charles Barney), 1857 -1921 (Barta Press, 1896)

Det Kongelige Norske videnskabers selskabs skrifter - Kongelige Norske videnskabers selskab. (Aktietrykkeriet, 1920)

Kortbegrip van het zamenstel der natuur - Linné, Carl von, 1707 -1778 (By J. van Schoonhoven, en Comp, 1772)

Kreuterbuch : künstliche Conterfeytunge der Bäume, Stauden, Hecken, Kreuter, Getreyde, Gewürtze : mit eigentlicher Beschreibung derselben Namen, in sechserley Spraachen, nemlich Griechisch, Latinisch, Italianisch, Frantzösisch, Teutsch und Hispanisch, und derselben Gestalt, natürlicher Krafft und Wirkung : sampt künstlichen und artlichem Bericht dess Distillierens : item von fürnembsten Gethieren der Erden, Vögeln, und Fischen : desgleichen von Metallen, Ertze, Edelgestein, Gummi, und gestandenen Säfften ... - Lonicer, Adam, 1528 -1586 (Heirs of Christian Egenolph, 1582)

Kritische Übersicht der europäischen Vögel. Revue critique des oiseaux d'Europe - Schlegel, H. (Hermann), 1804 -1884 (Arnz, 1844)

Kritisk framställning af fogelarterna uti äldre ornithologiska arbeten - Sundevall, Carl J., 1801 -1875 (s.n, 1857)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1790)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1805)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1816)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1824)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1832)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1835)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1842)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1857)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1859)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1861)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1893)

Die Kunst, Vögel als Bälge zu bereiten, auszustopfen, aufzustellen und aufzubewahren : nebst einer kurzen Anleitung, Schmetterlinge und Käfer zu fangen, zu präpariren, aufzustellen und aufzubewahren - Brehm, L. (Ludwig), 1787 -1864 (B.F. Voigt, 1842)

Kurze Beschreibung der Vögel Liv- und Esthlands - Meyer, Bernhard, 1767 -1836 (Johann Leonhard Schrag, 1815)

The Labrador coast. A journal of two summer cruises to that region - Packard, A. S. (Alpheus Spring), 1839 -1905 (N.D.C. Hodges, 1891)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (The Macmillan company, 1922)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (The Macmillan co, 1913)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (The Macmillan co, 1909)

Labrador : the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (Macmillan, 1912)

Labrador : the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (Macmillan Co, 1909)

Labrador, the country and the people - Grenfell, Wilfred Thomason, Sir, 1865 -1940 (Macmillan, 1909)

Les lacs des hauts plateaux de l'Amérique du Sud - Chevreux, Édouard, 1846 -1931 (Imprimerie nationale, 1906)

Lake Maxinkuckee : a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Dept. of Conservation, 1920)

Lake Maxinkuckee. a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Wm. B. Burford, printer], 1920)

Lakes and rivers - Groom Napier, Charles Ottley, 1839 - (Committee of General Literature and Education, Society for Promoting Christian Knowledge, 1879)

The Lancaster, farmer, a monthly journal - Harris, Alexander, 1827 - (Wylie & Griest [etc, 1869)

The land-birds and game-birds of New England : with descriptions of the birds, their nests and eggs, their habits and notes - Minot, H. D. (Henry Davis), 1859 -1890 (Naturalist's Agency, 1877)

The land-birds and game-birds of New England; with descriptions of the birds, their nests and eggs, their habits and notes ... - Minot, H. D. (Henry Davis), 1859 -1890 (Naturalist's Agency, 1877)

The land-birds and game-birds of New England with descriptions of the birds, their nests and eggs, their habits and notes - Brewster, William, 1851 -1919 (Houghton, Mifflin, 1903)

The land-birds and game-birds of New England; with descriptions of the birds, their nests and eggs, their habits and notes, with illustrations - Minot, H. D. (Henry Davis), 1859 -1890 (Houghton, Mifflin, 1895)

The land-birds and game-birds of New England; with descriptions of the birds, their nests and eggs, their habits and notes ... - Minot, H. D. (Henry Davis), 1859 -1890 (Naturalist's agency, 1877)

Latreille's Naturliche Familien des Thierreichs - Latreille, P. A. (Pierre André), 1762 -1833 (Im Verlage des Gr. H.S. priv. Landes-Industrie- Comptoirs, 1827)

Lebensbilder aus der Tierwelt - Meerwarth, Hermann, 1870 - (Voigtländer, 1908)

Lecons d'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Crochard, 1835)

Lectiones publicae de vermibus interstinalibus; inprimis humanis, quas habuit in Musaeo rer. nat. acad Lundensis d.XVIII Martii et sequ. MDCCLXXX-IV - Retzius, Anders Jåhan, 1742 -1821 (Typ. reg, 1786)

Lectures on comparative anatomy - Cuvier, Georges, baron, 1769 -1832 (Printed at the Oriental Press by Wilson ... for T.N. Longman and O. Rees, 1802)

Lehrbuch der Forstwirtschaft für Waldbau-und Försterschulen, sowie zum ersten forstlichen unterrichte für Aspiranten des Forstverwaltungsdienstes - Eckert, Karl, (W. Frick, 1908)

Lehrbuch der Naturgeschichte - Burmeister, Hermann, 1807 -1892 (Anton und Gelbecke, 1830)

Lehrbuch der Naturgeschichte - Perleb, Karl Julius, 1794 -1845 (Friedrich Wagner, 1831)

Lehrbuch der praktischen vergleichenden Anatomie - Vogt, Karl Christoph, 1817 -1895 (Vieweg, 1894)

Lehrbuch der praktischen vergleichenden Anatomie - Vogt, Karl Christoph, 1817 -1895 (Vieweg, 1889)

Lehrbuch der vergleichenden Anatomie der Wirbellosen Thiere - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Veit, 1846)

Lehrbuch der vergleichenden Anatomie der wirbellosen Thiere - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Verlag von Veit & Comp, 1848)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Royal College of Physicians of Edinburgh. (G. Fischer, 1914)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Oppel, Albert, 1863 -1915 (Fischer, 1896)

Lehrbuch der Zoologie für Studierende und Lehrer - Boas, J. E. V. (Johan Erik Vesti), 1855 -1935 (G. Fischer, 1890)

Lehrbuch der zoologie in populärer darstellung : nach methodischen grundsätzen für gehobene lehranstalten, sowie zum selbstunterrichte - Baenitz, Carl, 1839 - (Adolph Stubenrauch, 1876)

Lehrbuch der Zoologie - Claus, Carl, 1835 -1899 (Elwert, 1897)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1883)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1891)

Lehrbuch der Zootomie; anatomische Charakteristik der Thierklassen, als Einleitung in das Studium der Zoologie, vergleichenden Anatomie und Physiologie mit Hinweisung auf die Icones zootomicae - Frey, Heinrich, 1822 -1890 (Voss, 1843)

Leitfaden zum Bestimmen der Vögel Mittel-Europas, ihrer Jugendkleider und ihrer Nester, nach leicht und sicher erkennbaren Merkmalen - Dahl, Friedrich, 1856 -1929 (Verlag von Gebrüder Borntraeger, 1912)

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1906)

Lethaea geognostica oder Abbildungen und Beschreibungen der für die Gebirgs-Formationen bezeichnendsten Versteinerungen - Bronn, H. G. (Heinrich Georg), 1800 -1862 (1838)

Lichtenstein's Catalogus rerum naturalium rarissimarum - Godman, Frederick Du Cane, 1834 -1919 ([Printed by Taylor and Francis], 1882)

Life and letters of Alexander Goodman More, F.R.S.E., F.L.S., M.R.I.A., with selections from his zoological and botanical writings - More, Alexander Goodman, 1830 -1895 (Hodges, Figgis & co. (ltd.), 1898)

Life and letters of Alexander Goodman More, with selections from his zoological and botanical writings - More, Alexander Goodman, 1830 -1895 (Hodges, Figgis, 1898)

Life of a Scotch naturalist, Thomas Edward, associate of the Linnean Society - Smiles, Samuel, 1812 -1904 (J. Murray, 1877)

The life of vertebrates - Young, J. Z. (John Zachary), 1907 -1997 (Oxford University Press, 1962)

Life zone investigations in Wyoming - United States. Bureau of Biological Survey. (Government Printing Office, 1917)

A List of birds' eggs in the collection of Mr. William Stoate, Wembdon, Bridgewater - Stoate, William. (1880)

A List of birds' eggs in the collection of Philip Crowley - Crowley, Philip (Waddon House, 1883)

List of birds in vicinity of Fishkill-on-Hudson, N.Y - Stearns, Winfrid Alden, 1852 -1909 (Privately Printed, 1880)

A List of British birds - British Ornithologists' Union (John Van Voorst, 1883)

A List of British birds - British Ornithologists' Union (British Ornithologists' Union, 1915)

A list of British birds - British Ornithologists' Union (British ornithologists' union, 1915)

A list of British birds - British Ornithologists' Union (J. van Voorst, 1883)

A list of British birds, with, as an appendix, the "Graduates list" for labelling eggs - Marsden, Herbert W. (1881)