by Vogel, Arthur I | .
by Pitt , D | .
by Whittaker , Peter A | .
by Haggis , G H | .
by Ashton , Beryl G | .
by Bull , Alan T | .
by Mary Farmer | .
by Arnold Darlington | Alison Leadley Brown.
by D.W. Ewer | .
by Ronald A. Fisher | .
by Shibanikinkar Chaube | .
by Alfred W. Stonier | Douglas C. Hague.
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