The editors are very grateful to the following who gave of their time and expertise to act as referees for manuscripts submitted for publication in Volume 39.

J. M. Adams

T. H. Adatte

P. Árkai

D. C. Bain

K. Bahranowski

J. Bigham

J.L. Bishop

M.M. Blanc-Valleron

O.K. Borggaard

S. Boyd

C. Breen

L. Carlson

P. Castilho

R. Celis

H. Chamley

G. Christidis

G.J. Churchman

N. Clauer

J. Cuadros

J. Cuevas

E. De Grave

F. D...

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