Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1852)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1875)

Proceedings of the American Association for the Advancement of Science - American Association for the Advancement of Science. (s.n.], 1850)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1843)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1902)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1897)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1917)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1963)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1977)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1978)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1983)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1991)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1992)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1994)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1995)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1996)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1998)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2000)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2001)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2002)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2003)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2004)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1845)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1851)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1903)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1862)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1866)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1924)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1923)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1935)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1962)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1987)

Proceedings of the Cleveland Naturalists' Field Club - Cleveland Naturalists' Field Club. (1903)

Proceedings of the Committee of Science and Correspondence of the Zoological Society of London - Zoological Society of London. (Printed for the Society by Richard Taylor, 1830)

Proceedings of the Dublin University Zoological and Botanical Association - Dublin University. Zoological; Botanical Association.

Proceedings of the Elliott Society of Natural History of Charleston, South-Carolina - Elliott Society of Natural History (Russell & Jones, 1853)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1868)

Proceedings of the Folkestone Natural History & Microscopical Society - Folkestone Natural History & Microscopical Society. (1868)

Proceedings of the fourth International Congress of Zoology, Cambridge, 22-27 August, 1898 (Clay, 1899)

Proceedings of the Geological Society of London - Geological Society of America. (The Society, 1842)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1875)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1877)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1884)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1885)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1889)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1906)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1968)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1989)

Proceedings of the Literary and Philosophical Society of Liverpool - Literary; Philosophical Society of Liverpool. (1854)

Proceedings of the Literary and Philosophical Society of Manchester - Literary; Philosophical Society of Manchester. (The Society, 1865)

Proceedings of the Literary and Philosophical Society of Manchester - Literary; Philosophical Society of Manchester. (The Society, 1864)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1970)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1976)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1978)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1856)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1859)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1862)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1869)