Flowers and insects : contributions to an account of the ecological relations of the entomophilous flora and the anthophilous insect fauna of the neighborhood of Carlinville, Illinois, 1889-1896 - Robertson, Charles, 1858 - (1896)

Flowers and insects; lists of visitors of four hundred and fifty-three flowers - Robertson, Charles, 1858 -1935 (n.p, 1928)

Food habits of the vireos : a family of insectivorous birds - Chapin, Edward A. (Edward Albert) 1894 -1969 (U.S. Dept. of Agriculture, 1925)

Foraging behavior of some bees and wasps at Kallstroemia grandiflora flowers in southern Arizona and New Mexico - Linsley, E Gorton (Earle Gorton) 1910 -2000 (American Museum of Natural History, 1974)

Foraging selectivity in adult butterflies : morphological, ecological, and physiological factors affecting flower choice - May, Peter Gregory, 1955 - (1985)

Forest and stream ([Forest and Stream Publishing Co.], 1874)

Forest leaves - Pennsylvania Forestry Association. (Pennsylvania Forestry Association, 1913)

Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1903)

Forms of animal life : a manual of comparative anatomy : with descriptions of selected types - Rolleston, George, 1829 -1881 (Clarendon Press, 1888)

Forms of animal life; a manual of comparative anatomy, with descriptions of selected types - Rolleston, George, 1829 -1881 (Clarendon Press, 1888)

Der Forstschutz - Hess, Richard Alexander, 1835 -1916 (B.G. Teubner, 1898)

Die fossilen insekten und die phylogenie der rezenten formen; ein handbuch für paläontologen und zoologen - Handlirsch, Anton, 1865 -1935 (W. Engelmann, 1908)

Fossiliferous Cretaceous amber from Myanmar (Burma) : its rediscovery, biotic diversity, and paleontological significance - Engel, Michael S. (American Museum of Natural History, 2002)

Fourteen weeks in zoology - Steele, Joel Dorman, 1836 -1886 (A.S. Barnes & Company, 1876)

Fundamentals of paleontology - Davis, Donald R. (Smithsonian Institution Libraries and National Science Foundation, 1991)

The fur seals and fur-seal islands of the North Pacific Ocean - Jordan, David Starr, 1851 -1931 (Govt. Print. Off, 1899)

The fur seals and fur-seal islands of the North Pacific ocean - Jordan, David Starr, 1851 -1931 (Govt. Print. Off, 1899)

Gardens, wildlife densities, and subsistence hunting by Maya Indians in Quintana Roo, Mexico - Jorgenson, Jeffrey P. (1993)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1971)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1980)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1985)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1990)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1993)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1997)

Gayana. Zoología - Universidad de Concepción. Instituto Central de Biología. (Universidad de Concepción, Instituto de Biología, 1998)

Geelong Naturalist : monthly magazine of the Geelong Field Naturalists Club - Geelong Field Naturalists Club (The Club, 2002)

Geelong Naturalist : monthly magazine of the Geelong Field Naturalists Club - Geelong Field Naturalists Club (The Club, 2015)

De gelede dieren - Snellen van Vollenhoven, S. C. (Samuel Constant), 1816 -1880 (G.L. Funke, 1868)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1987)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1923)

The genera of bees of the tribe Eucerini in North and Central America (Hymenoptera, Apoidea) - LaBerge, Wallace Edmund (American Museum of Natural History, 1957)

Genera orchidacearum - Pridgeon, Alec M. (Oxford University Press, 1900)

General and professional biology : with special reference to man - Menge, Edward John von Komorowski, 1882 -1941 (Bruce Pub. Co, 1928)

General and professional biology : with special reference to man - Menge, Edward John von Komorowski, 1882 -1941 (Bruce, 1922)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1965)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1967)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1974)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1980)

A general guide to the British Museum (Natural History), Cromwell Road, London, S.W. : with plans and a view of the building - Flower, William Henry, 1831 -1899 (Printed by order of the Trustees, 1901)

A general guide to the British Museum (Natural History), Cromwell Road, London, S.W. : with plans and a view of the building - Flower, William Henry, 1831 -1899 (Printed by order of the Trustees, 1903)

A general guide to the British Museum (Natural History), Cromwell Road, London, S.W. : with plans and a view of the building - Flower, William Henry, 1831 -1899 (Printed by order of the Trustees, 1906)

General index to A hand-list of the genera and species of birds - Sharpe, Richard Bowdler, 1847 -1909 (British Museum (Natural History), 1912)

A generic key to the nests of hornets, yellowjackets, and paper wasps worldwide (Vespidae, Vespinae, Polistinae) - Wenzel, John W. (American Museum of Natural History, 1998)

Genus-group names of bees and supplemental family-group names - Michener, Charles D. (Charles Duncan), 1918 -2015 (Natural History Museum, The Univeristy of Kansas, 1997)

The geographical and geological distribution of animals - Heilprin, Angelo, 1853 -1907 (D. Appleton and company, 1887)

The geographical and geological distribution of animals - Heilprin, Angelo, 1853 -1907 (Kegan Paul, Trench, 1887)

The geographical and geological distribution of animals - Heilprin, Angelo, 1853 -1907 (D. Appleton, 1887)

Die geographische Verbreitung der Nacktschnecken - Heynemann, D. F. (M. Diesterweg, 1905)

The geological magazine, or, Monthly journal of geology - Woodward, Henry, 1832 -1921 (Cambridge University Press, 1895)

Geschlecht und Geschlechter im Tierreiche - Meisenheimer, Johannes, 1873 -1933 (G. Fischer, 1921)

A giant honey bee from the middle Miocene of Japan (Hymenoptera, Apidae) - Engel, Michael S. (American Museum of Natural History, 2006)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1990)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1991)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1992)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1993)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1994)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1995)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 1997)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2006)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2009)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2016)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2019)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2020)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2021)

The Glasgow naturalist - Natural History Society of Glasgow. (Glasgow Natural History Society, 2022)

Glasnik Hrvatskoga naravoslovnoga društva - Hrvatsko prirodoslovno društvo. (Vlastnitvo i naklada drutva, 1886-1907, 1887)

Glasnik Hrvatskoga naravoslovnoga društva - Hrvatsko prirodoslovno društvo. (Vlastnitvo i naklada drutva, 1886-1907, 1890)

Glasnik Hrvatskoga naravoslovnoga društva - Hrvatsko prirodoslovno društvo. (Vlastnitvo i naklada drutva, 1886-1907, 1897)

Glasnik Hrvatskoga prirodoslovnoga društva - Hrvatsko prirodoslovno društvo. (Vlastnitvo i naklada drutva, 1908, 1918)

Gleanings in bee culture (A. I. Root Co, 1906)

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

Gleanings in bee culture (A. I. Root Co, 1915)

Global Biodiversity: status of the Earth's living resources (1992)

A glossary to Say's Entomology - Say, Thomas, 1787 -1834 (S.A. Mitchell, 1825)

The Gloxinian - American Gloxinia; Gesneriad Society. (American Gloxinia and Gesneriad Society, 2005)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1983)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1985)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1987)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1994)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1995)

Grønlands landarthropoder (Insecta et Arachnida Groenlandicæ) - Henriksen, Kai Ludvig, 1888 - (Bianco Lunos bogtrykkeri, 1917)

Ground beetles (Carabidae) of Fennoscandia : a zoogeographic study - Lindroth, Carl Hildebrand 1905 -1979 (Smithsonian Institution Libraries and National Science Foundation, 1992)

Grundzüge der Paläontologie (Paläzoologie)/ von Karl A. von Zittel ... - Zittel, Karl Alfred von, 1839 -1904 (Druck und verlag von R. Oldenbourg, 1903)

Grundzüge der Zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert'sche, 1876)

Grundzüge der Zoologie. Zum Gebrauche an Universitäten und hoheren Lehranstalten sowie qum Selbststudium - Claus, Carl, 1835 -1899 (W.G Elevert'sche Verl, 1876)

Grundzüge der Zoologie. Zum gebrauche an universitäten und höheren lehranstalten sowie zum selbststudium - Claus, Carl, 1835 -1899 (N.G. Elwert, 1872)

Grundzüge der Zoologie. Zum wissenschaftlichen Gebrauche - Claus, Carl, 1835 -1899 (Elwert, 1880)

Guide to California insects - Woodworth, C. W. (Charles William), 1865 -1940 (The Law press, 1913)

A guide to the exhibition galleries ... Departments of Geology and Palaeontology, Mineralogy, and Botany - British Museum (Natural History) (1883)

A guide to the exhibition rooms of the departments of natural history and antiquities - British Museum (printed by order of the Trustees, 1867)

A guide to the exhibition rooms of the Departments of Natural History and Antiquities - British Museum (Natural History) (Printed by order of the Trustees, 1877)

A guide to the exhibition rooms of the Departments of Natural History and Antiquities - British Museum (Natural History) (Printed by order of the Trustees, 1878)

A guide to the exhibition rooms of the Departments of Natural History and Antiquities - British Museum (Natural History) (Printed by order of the Trustees, 1879)

Guide to the insects of Connecticut - Johannsen, O. A. (Oskar Augustus), 1870 -1961 (Geological and Natural History Survey, 1916)

Guide to the insects of Connecticut - Wheeler, William Morton, 1865 -1937 (Printed for The State Geological and Natural History Survey, 1916)

Guide to the invertebrates of the synoptic collection in the Museum of the Boston society of natural history - Boston Society of Natural History. Museum. (The Society, 1905)

Guide to the invertebrates of the synoptic collection in the Museum of the Boston society of natural history - Sheldon, J. M. Arms (Jennie Maria Arms), 1852 -1938 (The Society, 1905)