"Origin of Species", first draft of the. --geological chapter in the.

Osborn, H.F. --"From the Greeks to Darwin" by.

Palaeontological Record, D.H. Scott on the. --W.B. Scott on the.

Panmixia, Weismann's principle of.

Parkin, J. and E.A.N. Arber, on the origin of Angiosperms.

Peckham, Dr and Mrs, on the Attidae.

Philosophy, influence of the conception of evolution on modern.

Phylogeny, embryology as a clue to. --Palaeontological evidence on.