408 MENTAL EVOLUTION IN ANIMALS. 



burrowing, 372 ; variations in, of bees, 372-3 ; of chickens peeling their 

 ■way out of eggs, 374; of gad-fly, 375; of parasitism, 375-6; of bees, 

 375-6 ; of Molothrus and white ants, 376 ; of digging pitfalls, 376-7 ; 

 alleged to be rletrimental to the species exhibiting it, 377; only once 

 exhibited, 377-8; differences of, in related forms, 378; small and 

 trivial, 378-9 ; of removing broken eggs and mutings, 379 ; of Abys- 

 sinian pigeon, Lagostomus, and Guanacoes, 379 ; with regard to excre- 

 ment, 379 ; imperfect and mistaken, 380 ; social, 381 ; apparently 

 detrimental, 381-83 ; of attacking wounded companions, 381 ; of cock 

 pheasants crowing and wild hens cackling, 3S1 ; of shrew-mouse scream- 

 ing, ostrich scattering eggs, 382 ; at fault in sundry animals, 182-3. 



Ireland, habits of animals in. See W. Thompson. 



Ischndi, on migratory instincts of Alpine cattle, 358. 



lulus, feigning death, 364. 



Jackdaw, nidification of a, 370 ; stupidity of a, 371. 



Jenyns, the Rev. L., on habitations of rats, 372 ; on insects hatched within 



the human body, 375 ; on crowing of the cock pheasant, 381. 

 Jesse, on the nidification of a jackdaw, 370. 



K. 



Kangaroo, regurgitation of food by the, 374. 



Kirbv and Spence, on instincts of insects, 364, 368, 374, 375, 376, 377, 378, 



379, 383. 

 Ehapp, on nidification of the butcher-bird, 382. 



Lagostomus, instincts of, 401. 



Lamarck, on co-operation of swallows, 375. 



Larvse. See Insects. 



Lloyd, L., on migration of the lemming, 380. 



Le Roy, on wariness of foxes and wolves, 361. 



Lewis, on migration of the bison, 381. 



Le Vaillant, on migratory and non-migratory habits of quail, 355. 



Linneus, on instinct, 377. 



Livingstone, on instincts of hvrax, 379. 



Lizards, wildness and tameness of, 356 ; feigning death, 363-4. 



M. 



Macgillivray, on nests of swifts, 365-6, of kitty-wrens, 308 and 370, of 



herons, 369 ; on cooperation in martins, 375 ; ou parasitism in gulls, 



375. 

 Magpie, fearlessness of the, in Norway, 362 ; nidification of the, 370 ; powers 



of the, in imitating various sounds, 394-5. 

 Mammals, migrations of, 355-6, 358-9 j instinctive fear shown by, 361; 



habitations of, 372-3. 



