Plant: anabolic, [3];
domestication of, [136].
Pleasure and pain, [279].
Ploss, [4], [43], [44], [56], [177], [309].
Poetry, parallelism of development in, [274].
Poison, restrictions in use of, [165].
Political organization, [70].
Polyandry, [7].
Polygamy, [81], [142], [180], [181], [191].
Pope, [238].