Animal Life and Intelligence

by C. Lloyd Morgan

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• Rabbit, brain of, [171];
  • Angora crossed, [225];
  • one-eared, [226];
  • deprived of long lip-hairs, [247];
  • papilla foliata of, [250];
  • effects of superabundant food on, [394]
• Rae, Dr., on dogs swimming rivers, [364];
  • on "abstract reasoning" in the fox, [366];
  • on wild and tame ducklings, [435]
• Rage and anger, [389]
• Ramsay, Dr. Wm., on smell, [255]
• Rats of Solomon Islands, [100];
  • of the London Docks, [106];
  • at South Kensington, [115]
• Rayleigh, Lord, on colour-blending, [283];
  • on sensitive-flame experiments, [298];
• Reality, meaning of term, [314]
• Reason distinguished from intelligence, [330], [365];
  • as defined by Mr. Romanes, [372]
• Recepts, [326], [368]
• Recognition-marks, [103];
  • involve perception, [351]
• Reconstructs and reconstruction (mental), [318]
• Reflex action, [415];
  • and instinct, [422]
• Regeneration of lost parts, [41];
  • in relation to heredity, [124];
  • law of growth concerned in, [126]
• Reindeer wounded, [392];
  • change of habit in, [445]
• Remnants or vestiges, [196]
• Reproduction, nature of, [13];
  • and development, [36];
  • in the protozoa, [38];
  • in the metazoa, [41];
  • by budding, [42];
  • sexual, [42];
  • peculiar modifications of, [45];
  • developmental, [143]
• Reproductive cells, continuity of, [131]
• Resemblance, protective, [82];
  • aggressive, [90]
• Respiration an essential life-process, [3];
  • in illustration of the process of life, [21]
• Retardation and acceleration, [221]
• Retina of man, [274]; of birds, [284]
• Retinal purple, [276]
• Revenge, [401]
• Reversion, [191]
• Revolution and evolution, [119]
• Rhea, neck resembling snake, [88]
• Rhinolophus ferri-equinum, hipposideros, [65]
• Rhyme-association in parrot, [356]
• Ribot, M., on attention, [343]
• Richardson, Mr. Charles, on railway servants killed by train, [388]
• Riley, Prof., on Phengodini, [223]
• Romanes, Prof. G. J., on physiological isolation, [104];
  • on the cessation of selection, [190];
  • on the failure of heredity, [192];
  • on the reversal of selection, [193];
  • on sense of smell in dog,
  • on colour-sense in chimpanzee, [283];
  • on ideas, [326];
  • on dog cowed by noise, [340];
  • on abstract ideas in animals, [348];
  • on parrot, [353];
  • on localization and discrimination, [359];
  • examples of animal intelligence considered, [362];
  • on abstract ideas in the capuchin, [368];
  • definition of reason, [372];
  • on strange attachments in birds, [396];
  • on some emotions in animals, [400];
  • on endurance of pain in dogs and wolves, [402];
  • on sense of humour in dog, [407];
  • on indefinite morality in animals, [413];
  • definition of instinct, [422];
  • on education of ant, [428];
  • on homing faculty of bees, [428];
  • on consciousness and instinct, [432];
  • summary of his conclusions on instinct, [434];
  • on instincts of Siamese ants, [449];
  • his psychological scale, [478];
  • on the world as an eject, [479]
• Rotation, sense of, [269]
• Rotifers, absence of fertilization in reproduction, [45]
• Roux, on extirpation of cleavage-cell of frog's egg, [214]
• Rowell, G. A., on "Beneficent Distribution of Pain," [392]
• Ruffs, variability of males, [110], [178]
• Russell, Mr. W. J., on smell in the dog, [255]