Alexander
Agassiz

Harvard (Chemistry Tree)


William Keith
Brooks

Johns Hopkins (DevTree)


Oscar
Hertwig

(DevTree)


Christian Ernst
Stahl

(Evolution Tree)


Ernst Heinrich
Haeckel

Universität Jena (Neurotree)


Hans
Driesch

Universität Leipzig (DevTree)


Thomas Hunt
Morgan

Caltech (FlyTree)


Don Cameron
Warren

Kansas State University

Bernard Benjamin
Bohren

Purdue
(Options)


Daniel
Pomp

UNC Chapel Hill (Chemistry Tree)

Bernard BohrenX