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 
Teflection, 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; 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. 
“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 
