Raoul
Blanchard

Université de Montréal (Chemistry Tree)


John Ross
Mackay

UBC (Chemistry Tree)


Arthur Newell
Strahler

Columbia (Geotree)


Mark A.
Melton

Chicago (Geotree)


J. Brian
Bird

McGill (Geotree)


Jack D.
Ives

UC Davis (Geotree)


Michael Anthony
Church

UBC (Geotree)


Arthur R. M.
Nowell

University of Washington

Erika E.
McPhee

University of Washington
(Options)

Erika McPheeX