Entomologica Americana - Brooklyn Entomological Society (New York Entomological Society [etc.], 1956)

Enumeración de las plantas de la Peninsula Hispano-Lusitana é Islas Baleares, con la distribución geográfica de las especies, y sus nombres vulgares, tanto nacionales como provinciales - Colmeiro, Miguel, 1816 -1901 (Impr. de las Viuda é Hija de Fuentenebro, 1885)

Enumeración y revisión de las plantas de la Peninsula Hispano-Lusitana é Islas Baleares, con la distribución geográfica de las especies, y sus nombres vulgares, tanto nacionales como provinciales - Colmeiro, Miguel, 1816 -1901 (Fuentenebro, 1889)

Enumeratio plantarum omnium hucusque cognitarum : secundum familias naturales disposita, adjectis characteribus, differentiis et synonymis - Kunth, Karl Sigismund, 1788 -1850 (sumtibus J.G. Cottae, 1841)

Enumeratio plantarum, vel ab alium vel ab ipso observatum, cum earum differentiis specificis, synonymis selectis et descriptionibus succinctis - Vahl, M. (Martin), 1749 -1804 (Impensis auctoris, & prostat apud J.H. Schubothe, 1806)

Essai d'une nouvelle classification de la famille des Graminées : première ptie, Les genres - Remy, E.-A. (G. Baillière, 1861)

Las estepas de España y su vegetación - Reyes Prósper, Eduardo, 1860 -1921 (Est. tip. "Sucesores de Rivadeneyra,", 1915)

Evolution of the colors of North American land birds - Keeler, Charles, 1871 -1937 (Academy of Sciences, 1893)

Evolution of the colors of North American land birds - Keeler, Charles, 1871 -1937 (California Academy of Sciences, 1893)

Evolution of the colors of North American Land Birds - Keeler, Charles, 1871 -1937 (California academy of sciences, 1893)

The experimental method of testing the efficiency of warning and cryptic coloration in protecting animals from their enemies - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences], 1912)

Explorations in the far North - University of Iowa. (The University, 1898)

Explorations in the far North being a report of an expedition under the auspices of the University of Iowa during the years 1892, '93, and '94 - Russell, Frank, 1868 -1903 (State University of Iowa, 1898)

Facts relating to the history of Groton, Massachusetts - Green, Samuel A. (Samuel Abbott), 1830 -1918 (J. Wilson and Son], 1912)

Far and near - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1904)

Fauna arctica : eine Zusammenstellung der arktischen Tierformen mit besonderer Berücksichtigung des Spitzbergen-Gebietes auf Grund der Ergebnisse der Deutschen Expedition in das Nördliche Eismeer im Jahre 1898 - Brauer, August, 1863 -1917 (G. Fischer, 1905)

Fauna of New England, 11 : list of the aves - Allen, Glover M. (Glover Morrill), 1879 -1942 (Society of Natural History, 1909)

Fauna of New England - Allen, Glover M. (Glover Morrill), 1879 -1942 (Society of Natural History, 1909)

Fauna of New England. List of the Araneida 9 - Bryant, Elizabeth B. (Elizabeth Bangs), 1875 -1953 (For Society, 1909)

Fauna of the Aleutian Islands and Alaska Peninsula - Murie, Olaus Johan, 1889 -1963 (Dept. of the Interior, U.S. Fish and Wildlife Service, 1959)

Faune ornithologique de la Sibérie Orientale : oeuvre postume - Taczanowski, Władysław, 1819 -1890 (Eggers et Glasounof [etc.], 1891)

Field and forest - Potomac-side Naturalists' Club. (Columbia Press, 1876)

Field book - Fort Pierce, Florida, April 1993 - Smithsonian Environmental Research Center. (1993)

Field book - northeast Mexico and Yucatan peninsula, August-October 1979 - Smithsonian Environmental Research Center. (1979)

Field book of birds of the southwestern United States - Burnell, Elizabeth F. (Houghton Mifflin Company, 1925)

Field book of wild birds and their music : a description of the character and music of birds, intended to assist in the identification of species common in the United States east of the Rocky Mountains - Mathews, F. Schuyler (Ferdinand Schuyler), 1854 -1938 (G.P. Putnam's Sons, 1921)

Field book of wild birds and their music; a description of the character and music of birds, intended to assist in the identification of species common in the United States east of the Rocky Mountains - Mathews, F. Schuyler (Ferdinand Schuyler), 1854 -1938 (G.P. Putnam's Sons, 1921)

Field key to the land birds ... - Knobel, Edward, 1839 -1908 (B. Whidden, 1899)

Field notes on amphibians, reptiles and birds of northern Humboldt County, Nevada, with a discussion of some of the faunal features of the region - Taylor, Walter P. (Walter Penn), 1888 -1972 (University of California Press, 1912)

Fieldiana Zoology - Field Museum of Natural History. (Chicago Natural History Museum, 1958)

Final environmental impact statement : 1996 Olympic Whitewater Slalom Venue Ocoee River, Polk County, Tennessee, Ocoee Ranger District, Cherokee National Forest - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 1994)

A first book upon the birds of Oregon & Washington : a pocket guide and pupil's assistant in a study of the more common land birds and a few of the shore and water birds of these states - Lord, William Rogers, 1847 -1916 (William Rogers Lod, Office of the J.K. Gill Co, 1902)

A first book upon the birds of Oregon and Washington; a pocket guide and pupil's assistant in a study of most of the land birds and a few of the water birds of these states - Lord, William Rogers, 1847 -1916 (W. R. Lord, 1901)

A first book upon the birds of Oregon and Washington; a pocket guide and pupil's assistant in a study of most of the land birds and a few of the water birds of these states - Lord, William Rogers, 1847 -1916 (W. R. Lord, 1913)

First report : accompanied with Notes on the birds of Minnesota, by P. L. Hatch - Geological; Natural History Survey of Minnesota. (1892)

First report of the state zoo¨logist : accompanied with Notes on the birds of Minnesota - Hatch, P. L. (Geological and Natural History Survey of Minnesota, 1892)

Flora Atlantica, sive, Historia plantarum quae in Atlante, agro Tunetano et Algeriensi crescunt - Desfontaines, René Louiche, 1750 -1833 (Apud Blanchon, 1800)

Flora atlantica :sive historia plantarum quae in Atlante, agro tunetano et algeriensi crescunt - Desfontaines, René Louiche, 1750 -1833 (L.G. Desgranges, 1798)

Flora Bruxellensis exhibens characteres generum et specierum plantarum circum Bruxellas crescentium, secundum Linneum disposita, cum synonymis auctorum cui additur Lexicon Botanicon, in quo termini artis breviter exponuntur cura J Kickx ... - Kickx, Jean, 1803 -1864 (Typis M.-E. Rampelbergh, 1812)

Flora Bulgarica : descriptio et enumeratio systematica plantarum vascularium in Principatu Bulgariae sponte nascentium Supplementum I - Velenovský, J. (Josef), 1858 -1949 (F. Rivnác, 1898)

Flora der Gegend um den Ursprung der Donau und des Neckars : dann vom Einfluss der Schussen in den Bodensee bis zum Einfluss der Kinzig in den Rhein - Engelberg, Joseph Meinrad von, 1764 -1826 (A. Wilibald, 1804)

Flora helvetica; sive, Historia stirpium hucusque cognitarum in Helvetia et in tractibus counterminis aut sponte nascentium aut in hominis animaliumque usus vulgo cultarum continuata - Gaudin, Jean, 1766 -1833 (Sumptibus Orellii, Fuesslini et Sociorum, 1828)

Flora Ingrica, sive, Historia plantarum Gubernii Petropolitani - Ruprecht, F. (Eggers et Soc, 1860)

Flora Italica; sistens plantas in Italia et in insulis circumstantibus sponte nascentes - Bertoloni, Antonio, 1775 -1869 (R. Masi, 1833)

Flora lusitanica, seu, Plantarum, quae in Lusitania vel sponte crescunt, vel frequentius coluntur, ex florum praesertim sexubus systematice distributarum, synopsis - Brotero, Félix de Avellar, 1744 -1828 (Ex Typographia regia, 1804)

Flora médico-farmacéutica abreviada : ó, Sea descripción de las plantas medicinales, indígenas y exóticas mas usadas y algunas otras notables que no lo son, con indicación de su duración, del pais en que habitan, de la época en que florecen las que crecen en España, de sus usos farmacéuticos, sus virtudes médicinales, etc., etc. : dispuestas según el método natural - Bassagaña, Pedro. (Imprenta de Narciso Ramírez, 1859)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1819)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1830)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1845)

Flora of Middlesex : a topographical and historical account of the plants found in the county : with sketches of its Physical Geography and climate and of the progress of Middlesex Botany during the last three centuries - Trimen, Henry, 1843 -1896 (R. Hardwicke, 1869)

Flora of the U.S.S.R - Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) (Israel Program for Scientific Translations, 1964)

Flora Rossica; sive, Enumeratio plantarum in totius Imperii Rossici provinciis Europaeis, Asiaticis et Americanis hucusque observatarum - Ledebour, Carl Friedrich von, 1785 -1851 (Sumptibus Librariae E. Schweizerbart, 1853)

Flora y fauna del estado libre y soberano de Oaxaca - Martínez Gracida, Manuel 1847 -1924 (Imprenta del Estado, 1891)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 1988)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 1991)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 1990)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 1993)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 1992)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2000)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2002)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2003)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2004)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2006)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2007)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2014)

Florida field naturalist : a semi-annual journal of the Florida Ornithological Society - Florida Ornithological Society. (The Society, 2015)