by Alfred North Whitehead | .
by A. J. Gibbs | H.R.C. Meischke.
by Imer Lakatos | .
by Lazar Volin | .
by L.Broadbent | .
by Ernst Mayr | .
by Kenneth M.Smith | .
by M. H. Arnold | .
by G. H. Satchell | .
by A. P.M Lockwood | .
by Ben Dawes | .
by J. R. Postgate | .
by J. A. Barnett | .
by Kenneth A. Kershaw | .
by A. B. Rendle | .
by J. R. Hillman | .
by A. J. Gibbs | .
by J. J. Burdon | .
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