BUFFON, George Louis Leclerc, Comte de, 1707-1788.
LINNÉ, Carl von, 1707-1778.
WHITE, Gilbert, 1720-1793.
BANKS, Joseph Sir, 1743-1820
AUDUBON, John James, 1785-1851
DARWIN, Charles, 1809-1882.
THOREAU, David Henry, 1817-1862.
HUXLEY, Thomas Henry 1825-1895
HAECKEL, Ernst Heinrich Philipp August, 1834-1919.
MUIR, John, 1838-1914.
HUDSON, W. H. (William Henry), 1841-1922
LEOPOLD, ALDO, 1886-1948.