Adelard of Bath
Links
Catholic Encyclopedia: Adelard of Bath
http://www.newadvent.org/cathen/16001c.htm
Short article on this 12th-century thinker by William Turner.
MacTutor History of Mathematics: Adelard of Bath
http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Adelard.html
Biographical article with bibliography and links to related topics.
Medieval Sourcebook: Adelard of Bath
http://www.fordham.edu/halsall/source/adelardbath1.html
Excerpts from this thinker's Natural Questions, in which he argues that divine agency should not be invoked for those things which can be understood through reason.
Wikipedia: Adelard of Bath
http://www.wikipedia.org/wiki/Adelard_of_Bath
Concise article with links.