Papaw, juice of, hastening putrefaction, 411
Particles, minute size of, causing inflection in Drosera, 27, 32
Peas, decoction of, action on Drosera, 82
Pelargonium zonale, glandular hairs of, 350
Pepsin, odour of, emitted from Drosera leaves, 88 —, not digested by Drosera, 123 —, its secretion by animals excited only after absorption, 129
Peptogenes, 129
Pinguicula grandiflora, 390 — lusitanica, 391
Pinguicula vulgaris, structure of leaves and roots, 368 —, number of insects caught by, 369 —, power of movement, 371 —, secretion and absorption by, 381 —, digestion by, 381 —, effects of secretion on living seeds, 390
Platinum chloride, action on Drosera, 186
Poison of cobra and adder, their action on Drosera, 206