On the nature of limbs a discourse - Owen, Richard (University of Chicago Press, 2007)
Includes bibliographical references
Richard Owen and animal form / Ron Amundson -- Richard Owen's quadrophenia : the pull of opposing forces in Victorian cosmogony / Kevin Padian -- The mystery of Richard Owen's winged bull-slayer / Mary P. Winsor and Jennifer Coggon -- On the nature of limbs / [Richard Owen]
The most prominent naturalist in Britain before Charles Darwin, Richard Owen made empirical discoveries and offered theoretical innovations that were crucial to the proof of evolution. Among his many lasting contributions to science was the first clear definition of the term homology--"the same organ in different animals under every variety of form and function." He also graphically demonstrated that all vertebrate species were built on the same skeletal plan and devised the vertebrate archetype as a representation of the simplest common form of all vertebrates. Just as Darwin's ideas continue