INDEX 



ADDER, blowing, 17. 



Altruism among animals, 23. 



Ammophila, 117. 



Angler (Lophius piscatorius), 107. 



Animals, the author s attitude in 

 regard to the intelligence of, v, 

 vi ; nature of the intelligence of, 

 1-3; sources of the intelligence 

 of, 4 ; the sentimental attitude 

 towards, 59-61 ; emotions and 

 intellect of, 64 ; language of, 64; 

 curiosity of, 64; altruism of, 

 65 ; punishment and discipline 

 among, 65 ; the three factors that 

 shape their lives, 66; imitation 

 among, 66-70; learning by expe 

 rience, 70-73; variation in, 73; 

 instinct in, 73-83 ; incapable of 

 reflection, 77, 78; their know 

 ledge compared with man s, 80, 

 81 ; imitation among, not akin to 

 teaching, 83-86; belief in regard 

 to teaching among, 87; playof,87, 

 99, 100 ; communication among, 

 87-98; fear in, 89, 90; ears of, 95; 

 telepathy among, 96-98; their 

 habits the same everywhere, 

 101-103; courtship among, 104; 

 stories of poisoning among, 105, 

 106 ; stories of trapping and fish 

 ing among, 106, 107; individual 

 ity among, 118, 119 ; variation in, 

 120, 121; ignorance of, 123-125; 

 perceptive intelligence of, 126; 

 partakers of the universal intel 

 ligence, 128-130; know what is 

 necessary for them to know, 131 ; 

 their knowledge inherited, 132 ; 

 wise in relation to their food and 

 their enemies, 133; and the art 

 of healing, 134 ; protective color 

 ation of, 138-140 ; their fear of 



poison, 140; association of ideas 

 in, 141, 142; emotions of, 143; no 

 ethical sense in, 144, 145; auto 

 matism of, 146; and the use of 

 medicine, 147; the truth about 

 them what is wanted, 147-149; 

 the thinking of, instinct in, 151- 

 170; have perceptions but no 

 conceptions, 160 ; first steps of 

 intelligence in, 161, 162; limita 

 tions of intelligence in, 163-168 ; 

 automatism of trained animals, 

 166; incredible stories of, 175- 

 184; stories of surgery among, 

 180-182 ; true interpretation of 

 seeming acts of reason in, 184- 

 187, 189, 190; absence of language 

 among, 187-189 ; creatures of rou 

 tine, 190; the humanization of, 

 195, 196; nature of their intel 

 ligence, 209-230; their minds 

 incapable of improvement, 220- 

 222; the victims of habits, 222; 

 popular notion of teaching 

 among, 233, 234 ; nature of the 

 homing faculty of, 235 ; Bostock 

 on the training of wild, 239- 

 242 ; mimicry among, 248-250 ; 

 instinct in, 255-261. 



Antelope, 85. 



Apple trees, protecting them 

 selves from cattle, 153. 



Argyll, Duke of, 72. 



&quot; Atlantic Monthly, The,&quot; article 

 in, v, vi, 173. 



Baboon, 65. 



Barrington, Daines, 68. 



Barrus, Dr. Clara, her description 



of the woodcock s song and song 



flight, 43. 

 Bean, the, intelligence of, 1, 2. 



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