?




George
Fink

University of Melbourne


Frederick Gymer
Parsons

London University, St. Thomas's Hospital Medical School






Raymond Arthur
Dart

University of the Witwatersrand




Oscar
Hertwig

Universität Berlin


Giuseppe
Levi

University of Torino


Hans
Spemann

Albert-Ludwigs-Universität Freiburg


Viktor
Hamburger

Washington University





Alan G.
Watts

USC
(Options)

Alan WattsX