DTDEX. 



517 



SIG 



SYK 



Signs, made by ants, 49 et seq.; by 

 bees, 157 et scq. ; by termites, 200 ; 

 by birds, 315, 316 ; by elephants, 

 391 and 401; by cat, 416; by 

 dog, 445-7 ; by monkey, 472, 475, 

 476 



Kimiadcp., tee 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, 203 ; 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 

 d'sused 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 harvest] ng an ts, 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 



