Pleasure and pain: their organic limits[379]
Their directive value[380]
An emotion exemplified[382]
Sensitiveness and sensibility[385]
The expression of the emotions[385]
The postponement of action[385]
The three orders of emotion[390]
The capacities of animals for pleasure and pain[391]
Sense-feelings[393]
Some emotions of animals[395]
The necessity for caution in interpretation[399]
The sense of beauty[407]
Can animals be moral?[413]
Conclusion[414]

CHAPTER XI.
ANIMAL ACTIVITIES: HABIT AND INSTINCT.

The nature of animal activities[415]
The outer and inner aspect[417]
The inherited organization[419]
Habitual activities[420]
Instinctive activities[422]
Innate capacity[426]
Blind prevision[429]
Consciousness and instinct[432]
Mr. Romanes's treatment of instinct[434]
Lapsed intelligence and modern views on heredity[435]
Three factors in the origin of instinctive activities[447]
The emotional basis of instinct[449]
The influence of intelligence on instinct[452]
The characteristics of intelligent activities[456]
The place of volition[459]
Perceptual and conceptual volition[460]
Consciousness and consentience[461]
Classification of activities[462]

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.Amœba[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.