The information in this web document was obtained from the following sources:

Amigoni, D. (1995). Charles Darwin’s The Origin of Species. New York: Manchester

University Press.

Benjamin, L. T. Jr. (1997). A History of Psychology: Original Sources and

Contemporary Research (2nd ed.). Massachusetts: McGraw-Hill.

Bolles, R. C. (1993). The Story of Psychology: A Thematic History. California:

Brooks/Cole Publishing Company.

Graham, P. W. (1993). The Portable Darwin. New York: Penguin Books.

Ridley, M. (1987). The Darwin Reader. New York: W W Norton & Company.

Biography of Charles Darwin http://www.lib.virginia.edu/science/parshall/darwin.html

Charles Darwin - British Naturalist http://www2.lucidcafe.com/lucidcafe/library/96feb/darwin.html

Charles Darwin: Time Line http://149.152.105.38/Honors/EText/Darwin/DarwinTimeLine.html

Charles (Robert) Darwin (1809-1882) http://www.kirjasto.sci.fi/darwin.htm

Darwin, Charles (1809-82) http://userwww.sfsu.edu/~rsauzier/Darwin.html

Encarta Encyclopedia Online - Erasmus Darwin

Webster's Interactive Encyclopedia.Natural Selection.Cambrix Publishing

Elderly portrait of Charles Darwin found at http://www.windows.umich.edu/people/enlightenment/darwin.html

Images of Giant Galapagos Tortoises used with permission from www.ecuadortours.com

Portrait of Down House found at English Heritage http//www.english-heritage.org.uk/dminterface/dmindex.asp

Schematic Diagram of the HMS Beagle found at Charles Darwin's Ship HMS Beagle Links http://www.dropbears.com/brough/sweers/beagle.htm

Young image of Charles Darwin found at http://malvm1.mala.bc.ca/~mcneil/darwin.htm