William Henry
Howell

Johns Hopkins


Joseph
Erlanger

Washington University


Robert
Gesell

University of Michigan


Walter Morley
Fletcher

Cambridge (Physiology Academic Tree)


Michael
Foster

Cambridge


Keith
Lucas

Cambridge




Michael
Foster

Cambridge


Frederick Gowland
Hopkins

Cambridge (Chemistry Tree)


Walter Morley
Fletcher

Cambridge (Physiology Academic Tree)


Michael
Foster

Cambridge


Henry Newell
Martin

Johns Hopkins


Wilhelm
Kühne

Universität Heidelberg (Chemistry Tree)







George D.
Gammon

Penn
(Options)


George GammonX