t>54 



INDEX 



Green-fly, fertility of, 131 



Groos, 415, 517 



Grouse, Canadian, Ruffed, 162 



Grouse disease, 303 



Growing period, 401 



Growing, power of, 476 



Growth, 393 ; conditions of, 394 ; 



in man, 403 ; regulation of, 399 

 Guests, and hosts, 51-53 ; and 



pets among ants, 352 

 Guide-marks, 548 

 Guyer, Prof. M. T., 190 



Habitats, strange, 139 



Habits, change of, 27, 156 



Habituation, 595 



Haddocks, swarms of, 9 



Hamon, J. C., 137 



Harris, Prof. Fraser, 496, 530 



Harrison, Prof. Ross Granville, 390 



Haunts of Life, 54-126 



Heather, crowded with life, 7, 8 



Heligoland, 164 



Henderson, Prof. L. J., 579 



Henshaw, H. W., 183-184 



Herrick, F. H., 316-321 



Herubel, Marcel, 369 



Hewitt, Dr. Gordon, 360 



Hibernation, 108, 161 



Hickson, 91 



Hippolyte, 545 



His, Prof., 392 



Hjort, J., 87, 92 



Hoatzin, 125, 620 



Holder, Dr. C. H., 423 



Hollande, Dr. A. Ch., 542 



Holmes, S. J., 231 



Homing, 232 



Hooker, Davenport, 192 



Hormones, 398 



Hornbills, family life of, 50 



Horned lizards, 42-48 



Horse, a two-toed, 611 



Horses, thinking, 255 



Horsehair worms, 447 



House-fly, 360, 456 



Howard, Mrs. A. B., 491 



Howard, Dr. L. 0., 359 



Hoyle, W. E., 491 



Hudson, W. H., 250-251. 350 



Hull, A. F. Basset, 149 



Hunger and Love, 5 

 Hussakoff, Dr. L., 466 

 Huxley, 131, 372, 639-640 

 Huxley, Julian S., 557 



Implosion, 91 

 Impulses, primary, 5 

 Individuality, chemical, 507 

 ' Infantile mortality ' on the 



sea-shore, 64 



Inference, conceptual and per- 

 ceptual, 242 

 Insects, wings of, 125 

 Instinct and intelligence, 249 

 Instinct, animal, 199 ; limitations 



of, 227 ; origin of, 205 

 Instinctive behaviour, instances 



of, 208 



Insurgence of life, 127, 129 

 Intelligent behaviour, 241 

 Inter-relations, intricacies of, 263 ; 

 among freshwater animals, 106 

 Isolation, 114 

 Izuka, Akira, 133 



Jacobson, 16 

 Jameson, H. Lyster, 313 

 Japhen, Dr. A., 618 

 Jellyfish, 445 

 Jenkinson, Dr., 402 

 Jennings, Prof., 477 

 Joly, Prof., 472 

 Jordan, K., 53 



Kammerer, 563, 604 

 Keeble, Prof., 239, 545 

 Keibel, Prof. F., 526 

 Kellogg, Prof. V. L., 153 

 Kelpfish, 423 

 Kent, Saville, 43 

 King, Miss H. D., 564 

 Krall, 256 



Lacustrine regions, 102 

 Lake Baikal, 100, 113 

 Lakes, fauna of, 103 

 Laminarian Zone, 56 

 Land crab, 11 9, 156 

 Land snail, African, 132 

 Lang, Prof. Arnold, 161 

 Langerheim, 135 



