James
Walker

Edinburgh








George H.
Parker

Harvard (Anatomy Tree)




Thomas
Stevenson

King's College


Michael
Foster

Cambridge (Neurotree)




Frank Rattray
Lillie

Chicago (DevTree)


Soren P. L.
Sørensen

University of Copenhagen, Carlsberg Laboratory







Enrico O.
Purisima

National Research Council, Canada
(Options)

Enrico PurisimaX