INDEX. 
SYK 
517 
SIG 
Signs, made by ants, 49 et seq. ; by 
bees, 157 et seq. ; by termites, 200 ; 
by birds, 315, 316 ; by elephants, 
391 and 401 ; by cat, 416 ; by 
dog, 445-7 ; by monkey, 472, 475, 
476 
Siviiada, see Monkeys 
Simonius, on fondness of spiders for 
music, 206 
Sinclair, W., on intelligence of horse, 
33 
Skate, supposed intelligence of, 251 
Skinner, Major, on intelligent vigi- 
lance of elephants, 400, 401 ; on 
training of cobra, 265 
Slingsby, his experiment in train- 
ing a house-fly, 230, 231 
Smeathman, on termites, 198-203 
Smeaton, Th. D., on dog making 
peace-offerings. 452 
Smiles, Dr. S., on observation of 
Stephenson, 247 ; on observations 
of Edward, 255, 275, 283, 321 
Smith, A. P., on intelligence of a 
cat, 414 
Smith, Colonel, on pilot-fish, 252 
Smith, Colonel Hamilton, on intelli- 
gence of cattle-dogs, 449 
Smith, Sir Andrew, on revenge of a 
baboon, 478 
Snails, intelligence of, 26-28 
Snakes, incubating eggs, sexual and 
parental affection of, 256 ; tamed, 
256, 260-3, 265 ; finding way 
home, 262; intelligence of, 262- 
3; fascination by, 263-4 ; charm- 
ing of, 264-5 
Social feelings, see Sympathy and 
Affection; habits common to Hy- 
menoptera and termites, 202 
Sow, pointing game, 339, 340 
Sparman, on termites, 1 98 
Spencer, Herbert, on migration of 
salmon, 249 ; on play as allied to 
artistic feeling, 279 
Sphex, see under Wasp 
Spiders, emotions of, 204-7 ; court- 
ship, 204, 205 ; strength of 
maternal instinct, 205 ; fondness 
of music, 205-7 ; web-building, 
207-12; geometric, 209; water, 
212; wolf or vagrant, 213; trap- 
door, 213-18 ; admit of being 
tamed and distinguish persons, 
218-19 ; protecting eggs from 
cold, 219 ; protecting themselves 
from ecitons, 219; conveying prey 
to larder, 220 ; suspending weights 
to steady web, 220-2 ; wide 
geographical range of trap-door 
spiders, 216 
Stag, intelligence of, 336 
Starlings, nidification of, 293 ; learn- 
ing to avoid telegraph-wires, 312- 
13 
Stephenson, on curiosity of fish, 247 
Stevens, J. G-., on intelligence of a 
cat, 417-18 
Sticklebacks, 243-5, 246-7 
Stickney, on bees remembering in 
successive years the position of a 
disused hive, 154 
Stodmann, on wasps recognising 
persons, 188 
Stone, on reasoning power of a dog, 
460 
Stork, vindictiveness of, 277-8 
Strachan, on elephants dying under 
emotional disturbance, 395-6 
Strange, F., on habits of bower- 
bird, 281 
Strauss, on co-operation of beetles 
Street, J., on blackbirds removing 
their young, 289 
Strickland, on intelligence of a 
mare, 332 
Swainson, on vindictiveness of ele- 
phant, 389 
Swallows, memory of, 266 ; improve- 
ment in their nidification and 
adopting new modes of, 300 ; 
migration, 301; making tunnels, 
318 ; killing imprisoned hostile 
sparrows, 318-19 
Swan, conjugal fidelity of, 271 ; 
mode of escaping with young, 
290; nidification, 496-8 
Swine, 339-41 
Sword-fish, 252-3 
Sykes, Colonel, on harvesting ants, 97 : 
on tree ants, 110-11 ; intelligence 
of ants in getting at food in diffi- 
cult situations, 134, 135; on nidi 
fication of tailor-bird, 293 
