Index. 



509 



Interbreeding and intercrossing, 

 97 



Interneural evolution, 490 



Interpretations of nature, genera 

 and species of, 492 



Isle of Man, tortoiseshell butter- 

 fly of, 81 



Isolates, 322, 364 



Isolation, organic, or segregation, 

 99 ; mental, or abstraction, 322 



Jaeger, Dr., on crossing of pigs, 



230 

 Jenkins, Mr. H. L., on the 



elephant, 363 

 Judgment, 330 



Kallima paralecta, leaf-butter- 

 fly, 86 



Kant, quoted, 476 



Katabolism, a disruption or ex- 

 plosive process, 32 



Kea, of New Zealand, 446 



Keimplasma. See Germ-plasm 



Kentish plover, 83, 217 



Kepler, Dr. Huggins's dog, 396 



Kerguelen Island, wingless in- 

 sects of, 81 



Kinesis, 467 



Kingfishers, 446 



Kikbt and Spence, localization 

 of smell in insects, 258 ; on 

 hearing in a moth, 267 ; on 

 instinct of ichneumon fly, 430 



Kittens, instinctive antipathy to 

 dog, 396 



Klein, Mr. S., on Bombyx quer- 

 cus, 258 



Kt/hne, Messrs. Boll and, on 

 retinal purple, 276 



Labyrinthodont amphibia, pineal 

 eye in, 288 



Lamont, on reindeer, 392 



Lane, Dr. Arbuthnot, on in- 

 fluence of certain trades on 

 structure, 169 



Langlet, Prof., on setherial vi- 

 brations, 299 



Language, 322 ; the instrument 

 of analysis, 349 ; its origin 

 and effects, 374 



Lankestee, Prof. E. Ray, his 

 description of perigenesis, 159 ; 

 on blind cave-fish, 194 



Lapsing of intelligence, 435 



Lakden, W., on the Rhea, 89 ; 

 on instinct in a snakelet, 424 



Larmarckian school, 209 



Larvae, dimorphism in, 187 



Latency, phenomena of, 227 



Lateral line of fishes, 252 



Leaf-butterfly, 86 



Lee, Mr. Arthur, on communi- 

 cation in cat, 345 



Leptalis, 87 



Lekot, on abstract notion of 

 danger in fox, 348 



Leucocytes, role of, 439 



Lewes, G. H., 437, 462 



Leydig, on antennule of cray- 

 fish, 259 



Life, duration of, due to natural 

 selection, 186 



Life-area, expansion and con- 

 traction of, 114 



Limits of vision, 281 ; of sensa- 

 tion, 299 



Limnceus truvcatulus, 48 



Lincecdm, Dr., on habits of 

 Texan ants, 425 



Linnet, song of, 454 



Lion, observation on, 400 



Liver-fluke, life-history of, 47 



Local signs, 308 



Localization, 307 ; in animals, 

 338 ; in medusa, 359 



Locke, on difference between 

 man and brute, 349 



Logos makes man human, 375 



Loneiere, on instincts of Siam- 

 ese ants, 449 



Lotze, quoted, 379 



Lubbock, Sir J., " Senses of 

 Animals," 246 ; sense of smell 

 in ants, 258 ; auditory organ 

 of ant, 267 ; on Hicks's organ, 

 267 ; on colour-sense in dog, 

 283 ; in insects, 291 ; in Daph- 

 nia, 292 ; on limits of colour- 

 vision, 296 ; on antennary 

 structures in hymenoptera, 

 297 ; on power of communica- 

 tion in dog, 345; in ants, 358; 

 on colour preferences in bees, 

 407 ; on instinct of play and 

 sympathy in ants, 414; on 

 homing faculty in bees, 428 ; 

 on sitaris, 439 



Lucanus cervus, 180 



Ludicrous, sense of, in dog, 

 406 



Lumsden, Sir Harry, on part- 

 ridges, 398 



Lyell, the necessary precursor 

 of Darwin, 121 



Mach, Prof., on Macuta acustica, 

 271 



Machetes pugnax, 110, 178 



Mackennal, Mr. Alexander, ob- 

 servation on a cat, 405 



Maclagan, Miss Nellie, on sym- 

 pathetic action in dog, 398 



Madeira, wingless insects of, 81 



Male. See Sex-differentiation 



Male and female insects, differ- 

 ences between, 179; greater 

 variability in, 237 ; vigour and 

 vitality of, in secondary sexual 

 characters, 237 



Malle, Dureau de la, on star- 

 ling, 455 



Mammals, respiration in, 21 ; 

 early nutrition of, the result 

 of parental sacrifice, 57 ; con- 

 vergence in, 117; senseof smell 

 in, 255 ; hearing in, 263 ; sight 

 in, 283 ; perceptions of, 338 



Man, elimination by physical 

 circumstances, 81 ; alternation 

 of good and bad times, 117 ; 

 reversion in, 229 



Mann, Mrs., on sympathetic 

 action of dog, 397 ; anecdotes 

 of dogs, 406 



Mantis, protective and aggres- 

 sive resemblance in, 90 



Marsupials of Australia, 117 



Martineau, Dr., on wants, 3S2 



Materialism, 464, 471 



Mathematical faculty and natural 

 selection, 484 



Madpas, M., observations on 

 infusoria, 39 



Mater, on mosquito, 267 



McCook, Dr., sense of smell in 

 ants, 258 ; habits of Texan 

 ants, 425 



McCosh, Dr., quoted, 391 



Means and ends, 371 



Medusa, 46; sense of hearing in, 

 265 ; eyes of, 293 ; localization 

 by, 359 



Melancrpeton, 288 



Meldola, Prof. R., 239 



Memory, the revival of past 

 impressions, 304 ; organic, 

 Butler and Hering on, 62 



Mental evolution, 464 



Mercier, Dr. Charles, on the 

 criteria of intelligence, 456 



Merrifield, Mr., experiments 

 on moths, 238 



Metabolism, 32 



Metakinesis, 467 



Metamorphosis and transforma- 

 tion, 7 



Metaphyta, 15 



Metazoa, 15 



Methona, 87 



Miall, Prof., Fig. of touch-hair 

 of an insect, 248 



Mice, white and grey, crossed, 

 225 



Microbes, elimination among, 80 



Micrococcus prodigiosus, 81 



Microstomum lineare, reproduc- 

 tion in, 42 



Mimicry, 87 ; as evidence of per- 

 ceptual association, 202, 351 



Mind, out of what evolved ? 464 



Mineral crystals, analogy of, 

 240 



Mitchell, James, his delicate 

 sense of smell, 255 



Mivart, Prof. St. George, on 

 Saturnia, 163; on common- 

 sense realism, 316; on ideas, 

 etc., 326; on "practical intel- 

 ligence," 362 ; on man and 

 brute, 374; on consciousness 

 and consentience, 461 



Modifiability of individual organ- 

 ism, 163 



Modifications of antennas and 

 mouth-organs of insects, 178 



Mole, eye of, 284 



Mollusks, variety of, 178 ; sense 

 of smell in, 260; hearing in, 

 265; sight in, 292 



Monads, reproduction of, 38 ; 

 temperature experiments with, 

 147 



Mongrelization, 168 



Monistic hypothesis, 465 



Monkey, ateles and colobus digits 

 of, 210; examining marsupial 

 pouch, 340 ; attention in, 342 ; 

 capuchin, intelligence of, 367 



Monospora biscuspidata, 439 



Moore, Mr. Thomas, on hybrids 

 between Amherst and golden 

 pheasants, 106 



Mosaic vision, 291 



Mouth-organs of insects, 179 



Muciparous canals of fishes, 29S 



MiiLLER, Prof. Max, "Science of 

 Thought," 325; on percepts, 



