Genera hydrocoridum secundum ordinem naturalem in familias disposita - Fieber, Franz Xaver, 1807 -1872 (Ex Caes. Reg. Aulica typographia filiorum A. Haase, 1851)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1904)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1912)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1902)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1903)

Genera insectorum : eorumque characteres naturales secundam numerum, figuram, situm et proportionem, omnium partium oris adiecta mantissa specierum nuper detectarum - Fabricius, Johann Christian, 1745 -1808 (Litteris Mich. Friedr. Bartschii, 1776)

Genera insectorum eorumque characteres naturales secundum numerum, figuram, situm et proportionem omnium partium oris adiecta mantissa specierum nuper detectarum - Fabricius, Johann Christian, 1745 -1808 (Bartsch, 1777)

Genera insectorum Linnaei et Fabricii iconibus illustrata - Linné, Carl von, 1707 -1778 (Prostat apud Henric. Steiner et Socios, 1789)

The genera of plants - Salisbury, R. A. (Richard Anthony), 1761 -1829 (J. Van Voorst, 1866)

Genera plantarum, ad facilius consequendam earum notitiam secundum numerum laciniarum corollae disposita - Wernischeck, Jacob, 1743 -1804 (Typis J.Thomae de Trattnern, 1764)

Genera plantarum, cum characteribus suis essentialibus et naturalibus - Wernischeck, Jacob, 1743 -1804 (E Typographeo Kaliwodiano, 1763)

General outline of the organization of the animal kingdom and manual of comparative anatomy - Owen, Richard, 1804 -1892 (John van Voorst, 1855)

General zoology, or Systematic natural history - Stephens, James Francis, 1792 -1853 (Printed for G. Kearsley, 1806)

General zoology, or Systematic natural history - Stephens, James Francis, 1792 -1853 (Printed for G. Kearsley, 1817)

General zoology, or Systematic natural history - Stephens, James Francis, 1792 -1853 (Printed for G. Kearsley, 1825)

The Genesee farmer ([L. Tucker], 1831)

Genesee farmer (B.F. Smith & Co, 1860)

Genetics - Herskowitz, Irwin Herman, 1920 - (Little, Brown, 1965)

Les genres des insectes de Linné : constatés par divers échantillons d'insectes d'Angleterre, copiés d'après nature - Barbut, James. (Imprimé par Jacques Dixwell, dans St. Martin's Lane, et se vend au profit de l'auteur chez J. Sewell, Libraire, dans Cornhill, 1781)

A geographical bibliography of British ornithology from the earliest time to the end of 1918, arranged under counties, being a record of printed books, published articles, notes and records relating to local avifauna - Swann, H. Kirke (Harry Kirke), 1871 -1926 (Witherby, 1920)

The geological magazine, or, Monthly journal of geology - Woodward, Henry, 1832 -1921 (Cambridge University Press, 1864)

Geology - Dana, James Dwight, 1813 -1895 (G. Putnam, 1849)

The geology of Minnesota - Lesquereux, Léo, 1806 -1889 (Johnson, Smith & Harrison, state printers, 1884)

Giornale Arcadico di Scienze / Lettere ed Arti (1819)

Giornale Arcadico di Scienze / Lettere ed Arti (1820)

Giornale Arcadico di Scienze / Lettere ed Arti (1827)

Giornale Arcadico di Scienze / Lettere ed Arti (1838)

Giornale di scienze naturali ed economiche - Istituto tecnico di Palermo. (Istituto tecnico di Palermo, 1872)

Giornale di scienze naturali ed economiche - Istituto tecnico di Palermo. (Istituto tecnico di Palermo, 1884)

Glanders and farcy in the horse - Royal College of Physicians of Edinburgh. (Longman, Brown, Green, and Longmans, 1845)

Gleanings in bee culture (A. I. Root Co, 1885)

Gleanings in bee culture (A. I. Root Co, 1908)

Grasses of North America - Beal, W. J. (William James), 1833 -1924 (H. Holt and company, 1887)

Grasses of North America the grasses classified, described and each genus illustrated, with chapters on their geographical distribution and a bibliography - Beal, W. J. (William James), 1833 -1924 (H. Holt, 1896)

Gray's new manual of botany (7th ed.–illustrated) A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada - Robinson, Benjamin Lincoln, 1864 -1935 (American book company, 1908)

Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada - Robinson, Benjamin Lincoln, 1864 -1935 (American Book Co, 1908)

Gray's new manual of botany : a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada - Robinson, Benjamin Lincoln, 1864 -1935 (American Book Company, 1908)

Gray's new manual of botany, a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada - Robinson, Benjamin Lincoln, 1864 -1935 (American Book Co, 1908)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1981)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1961)

Grevillea - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Williams and Norgate, 1872)

Grundriss der Entwickelungsgeschichte des Menschen und der höheren Thiere. Für Studierende und Ärzte - Kölliker, Albert, 1817 -1905 (W. Engelmann, 1884)

Grundriss der Entwicklungsgeschichte des Menschen und der höheren Thiere : für Studirende und Ärzte - Kölliker, Albert, 1817 -1905 (W. Engelmann, 1880)

Grundriss der Entwicklungsgeschichte des Menschen und der Säugethiere, für Studirende und Arzte. Bearb. unter Zugrundelegung der 2. Aufl. des Grundrisses der Entwicklungsgeschichte von A. Koelliker - Kölliker, Albert, 1817 -1905 (W. Engelmann, 1897)

Grundriss der Entwicklungsgeschichte des Menschen und der Säugethiere : für Studirende und Ärzte - Kölliker, Albert, 1817 -1905 (W. Engelmann, 1897)

Grundzüge der Pflanzenverbreitung auf der iberischen Halbinsel - Willkomm, Moritz, 1821 -1895 (W. Engelmann, 1896)

Grundzüge der pflanzenverbreitung auf der Iberischen halbinsel - Willkomm, Moritz, 1821 -1895 (W. Engelmann, 1896)

Le guide du botaniste herborisant : conseils sur la récolte des plantes, la préparation des herbiers, l'exploration des stations de plantes phanérogames et cryptogames et les herborisations ... - Verlot, Bernard, 1836 -1897 (J. B. Baillière, 1865)

Guide leaflet - American Museum of Natural History (The Museum, 1901)

A guide to the dissection of the dog - Bradley, O. Charnock (Orlando Charnock), 1871 -1937 (Longmans, Green, 1912)

Gulielmi Hudsoni, Regiae Societatis Socii et Pharmacopaei Londinensis, Flora anglica : exhibens plantas per regnum angliae sponte crescentes, distributas secundum systema sexuale : cum differentiis specierum, synonymis autorum, nominibus incolarum, solo locorum, tempore florendi, officinalibus pharmacopaeorum - Hudson, William, 1730? -1793 (Impensis auctoris, 1762)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1932)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1933)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1935)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1936)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1937)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1938)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1940)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1948)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1961)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1963)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1964)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1965)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1966)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1969)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1970)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1972)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1974)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1978)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1980)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1982)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1984)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1987)

Gustavi Paykull Ser. Svec. Reg. Cancellar. a consiliis ... Fauna Svecica. Insecta - Edman, Johan Fredrik, 1763 -1824 (Litteris Joh. F. Edman, Reg. Acad. Typogr, 1800)