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; play of, 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 ; tlieir 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 ; flrst 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. 

 Atlantic Monthly, The," 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. 



273 



