Chapter XII: Mental Evolution

Is mind evolved from matter? 464
Kinesis and metakinesis 467
Monistic assumptions 470
The nature of ejects 476
The universe as eject 478
Metakinetic environment of mind 481
Conceptual ideas not subject to natural selection 483
Elimination through incongruity 486
Interneural evolution 490
Interpretations of nature 492
Can fetishism have had a natural genesis? 493
The origin of interneural variations 496
Are acquired variations inherited? 497
Summary and conclusion 501

LIST OF ILLUSTRATIONS.

FIG. PAGE

Kentish Plover with Eggs and Young: Frontispiece
1. Spiracles and Air-tubes of Cockroach 3
2. Gills of Mussel 4
3. A Cell greatly magnified 11
4. Am[oe]ba 12
5. Egg-cell and Sperm-cell 13
6. Diagram of Circulation 23
7. Protozoa 38
8. Hydra Virides 43
9. Aurelia: Life-cycle 45
10. Liver-Fluke--Embryonic Stages 47
11. Diagram of Development 51
12. Wing of Bat (Pipistrelle) 64
13. Variations of the Noctule 67
14. Variations of the Long-eared Bat 68
15. Variations of the Pipistrelle 69
16. Variations of the Whiskered Bat 70
17. Variations adjusted to the Standard of the Noctule 73
18. Caterpillar of a Moth on an Oak Spray 85
19. Locust resembling a Leaf 86
20. Mimicry of Bees by Flies 91
21. Egg and Hen 141
22. Stag-Beetles 180
23. Tactile Corpuscules 247
24. Touch-hair of Insect 248
25. Taste-buds of Rabbit 250
26. Antennule of Crayfish 259
27. Diagram of Ear 263
28. Tail of Mysis 266
29. Leg of Grasshopper 266
30. Diagram of Semicircular Canals 270
31. The Human Eye 274
32. Retina of the Eye 274
33. Variation in the Limits of Colour-vision 281
34. Pineal Eye 288
35. Skull of Melanerpeton 288
36. Eyes and Eyelets of Bee 289
37. Eye of Fly 290
38. Diagram of Mosaic Vision 291
39. Direction-retina 295
40. Antennary Structures of Hymenoptera 297

ANIMAL LIFE AND INTELLIGENCE.