Wilhelm Gottlieb
Hankel

Universität Leipzig


Eilhard Ernst Gustav
Wiedemann

University of Erlangen (Physics Tree)


Joseph John
Thomson

Cambridge (Physics Tree)


Alexander William
Bickerton

Canterbury College in Christchurch (Physics Tree)


Arthur
Schuster

University of Manchester (Physics Tree)




Hans
Geiger

Technische Hochschule Berlin (Physics Tree)


Otto
Haxel

Universität Heidelberg (Physics Tree)

Johann Carl (John)
Vogel

National Physical Research Laboratory
(Options)

Johann VogelX