INDEX 



289 



Intelligence in lower inverte- 

 brates, 63 ff, 86 ff, 182 



in mammals, 166, 167, 232 ff 



in mollusca, 187-189 



in monkeys, 260 



in reptiles, 230 

 Isopods, thigmotaxis, 36 



Jackson, H. H. T., phototaxis of 



Hyalella, 50 



James, W., 114, contradictory 

 instincts, 112 



instinct as determinant of 

 action, 113 



instinct and intelligence, 168 

 Jassa, change of phototaxis, 49 

 Jelly-fish, reflexes, 13 

 Jennings, H. S., 34, 61, 89, 163; 

 Aiptasia, food taking, 151 



Amoeba, food taking, 59, 68; 

 locomotion, 66; role of 

 surface tension in move- 

 ments, 67-69 



anemones, habits, 153; varied 

 reactions, 146, 147 



Chilomonas, chemotaxis, 27 



Didinium, capture of food, 

 78 



earthworms, varied reactions 

 of, 148, 149 



Euglena, phototaxis, 44, 45 



Paramoecium, chemotaxis, 23- 

 26; motor reflex in, 73, 74; 

 thigmotaxis, 35; varia- 

 tions in behavior, 76, 77 



Spirillum, chemotaxis, 27 



starfish habits, 154-155, 158- 

 159, 181, 182 



Stentor, modifiability of be- 

 havior, 83 



tropisms, 21 



Jesse, E., intelligence in alligator, 

 230 



Keeble, F., 163, tidal rhythms in 

 Convoluta, 156 



Kinnaman, A. J., 279, imitation in 



Rhesus monkeys, 272 

 Kirby, W. and Spence, W., 216, 



definition of instinct, 91 

 intelligence of beetle, 206 

 Knauer, F. K., intelligence of frogs, 



228 

 Kollmann, J., 189, intelligence of 



octopus, 189 

 Kreidl, A., 32, fishes coming to 



sound of bell, 224 

 functions of statocysts in 



Palaemon, 31, 32 



Labidocera, geotaxis, 31 



phototaxis changed by con- 

 tact, 50 



Lacordaire, J. T., intelligence of 

 instincts, 191 



Lady-beetles, geotaxis, 32 



Lamarck, J. B., evolution of 

 instinct, 115, 118 ff 



Lamarkian theory of instinct, 115- 

 131, 136-138 



Lambs, undefined instinct of young, 

 96 



Landois, H., 231 



Lasius, intelligence, 212, 213 



variability of cocooning in- 

 stinct, 132 



Lecaillon, A., 231 



Lee, F. S., 61 



Leibnitz, intelligence of animals, 

 232 



Leucocytes, chemotaxis, 26 



Lewes, G. H., 138, origin of 

 instinct, 116 



Lillie, R. S., phototaxis of Areni- 

 cola, 52, 53 



Limpets, homing, 187, 188 



Limulus, segmental reflexes, 16 



Littorina, tidal rhythms, 156, 

 157 



Lizards, intelligence, 229 



Lobster, phototaxis, 55, 56 

 rheotaxis, 38, 57 



