In 1916, at the age of twenty-nine,

Edward Stuart Russell was born 23 March 1887 to Helen Cockburn Young and the Reverend

Charles Otis Whitman was an extremely curious and driven researcher who was not content to limit himself to one field of expertise. Among the fields of study to which he made significant contributions were: embryology;

1. Overview
2. Homology in pre-evolutionary biology
3. Homology after the advent of evolutionary theory
4. Development and hierarchy. Approaches to homology
Acknowledgements
Sources

1. Overview