- Philolaus, 779
- Pholas, 561
- Phormosoma, 664
- Phractaspis, 484
- Phyllotaxis, 635
- Phylogeny, 196, 251, 548, 716
- Pike, F. H., 110
- Pileopsis, 555
- Pinacoceras, 584
- Pithecanthropus, 772
- Pith of rush, 335
- Plaice, 98, 105, 117, 432, 710, 774
- Planorbis, 539, 547, 554, 557, 559
- Plateau, F., 30, 232; J. A. F., 192, 212, 218, 239, 275, 297, 374, 477
- Plato, 2, 478, 720; Platonic bodies, 478
- Plesiosaurs, 755
- Pleurocarpus, 289
- Pleuropus, 573
- Pleurotomaria, 557
- Plumulariidae, 747
- Pluteus larva, 392, 415
- Podocoryne, 342
- Poincarûˋ, H., 134
- Poiseuille, J. L. M., 669
- Polar bodies, 179; furrow, 310, 340
- Polarised light, 418
- Polarity, morphological, 166, 168, 246, 295, 284
- Pollen, 396, 399
- Polyhalite, 433
- Polyprion, 749, 776
- Polyspermy, 193
- Polytrichum, 355
- Pomacanthus, 749
- Popoff, M., 286
- Potamides, 554
- Potassium, in living cells, 288
- Potential energy, 208, 294, 601, etc.
- Potterãs wheel, 238
- Potts, R., 126
- Pouchet, G., 415
Table of Contents
INDEX.
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