408 MENTAL EVOLUTION IN ANIMALS. 



biirroTving, 372 ; variations in, of bees, 372-3 ; of chickens peeking tlioir 

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

 375-6 ; of Ilolothriis 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 ; email and 

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

 sinian pigeon, Lagostomus, and Griianacoes, 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, 381 ; 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 Eev. 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, regiu'gitation of food by the, 374. 



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



379, 383.* 

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



L. 



Lagostomns, instincts of, 401. 



Lamarck, on co-operation of swallows, 375. 



Larvae. 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 Yaillant, on migi'atory and non-migratory habits of quail, 355. 



Linneus, on instinct, 377. 



Livingstone, on instincts of hyrax, 379. 



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



M. 



Macgillivray, on nests of swifts, 365-6, of kitty-wrens, 368 and 370, of 



herons, 369 ; on cooperation in martins, 375 ; on 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, migi-ations of, 355-6, 358-9 ; instinctive fear shown by, 361 ; 



habitations of, 372-3. 



