INDEX. 



XiX 



Org&js, deep-seated, how do we 

 know that they are divested of 

 feeling 108 



Organs, internal, why do they 

 retain their places in the body 110 



Ornythorynchus, or-ne-tho-ring'- 

 ku*, why so called 426 



Ornythorynchus, why is it pro- 

 vided with a duck-like ap- 

 pendage 427 



Ostrich, why is it the swiftest of 

 animals 875 



Ostrich why are its digestive 

 organs so powerful 876 



Ostrich, why does the hen con- 

 tinue to lay while incubating ... 877 



Ostrich, why does the hen aban- 

 don her nest for a long period ... 879 



Ostrich, why is it said to be a 

 neglectful mother 881 



Ostrich, why does its foot resemble 

 that of the camel 883 



Ostrich, why has it small and light 

 wings 885 



Otters, why when hunting fish do 

 they swim against the stream ... 252 



Ouzel, the nest of 700 



Oven-bird, why so called 830 



Owls, why able to turn their heads 

 round in a circle 676 



Owl, why is its head large 677 



Owls, peculiar provision of their 

 ears 678 



Owls, why is their flight feeble ... 679 



Owls, why wrong to destroy 

 them 680 



Ox, why is it one of the most 

 valuable and useful beasts ... 538 



Ox, why does the sight of blood 

 and o'f red colours infuriate it 540 



Oxen, why do they frequently 

 stand in shallow water during 

 hot weath-r ... 541 



Oxen, why have they a licking 

 motion with the tongue when 

 grazing 542 



Oxen, why so easily and uni- 

 versally domesticat *d 545 



Oxen, why have they divided 

 hoofs 546 



Oxen, wild and tame, why a 

 greater difference than between 

 wild and tame sheep 575 



Oxen, acclimation of 539 



Pachydermata, pack-e-der-ma'-ta 429 



Pachydermata ordinai-ia, or-de- 

 na'-rea 431 



Pachydermata, how subdivided ... 431 



Palmipedes, pal-me-pp-dees, why 

 are birds of the order of nata- 

 tores so called 918 



Panthers, hearing very acute ... 213 



Panther, distinction between, and 

 the leopard 322 



Papillae, pa-pil'-lay 31 



Paroquettes, par-ro-kets', why so 

 called 811 



Paroquettes, why numerous in 

 America ... ... .. 812 



Parrot, why is its bill thick and 



powerful 799 



Parrot, why is it able to use its 



bill with force dnd yet with 



nicety 801 



Parrot, why has each species its 



peculiar residence S03 



Parrot, why are there marked dif- 

 ferences in the forms of their 



feet 804 



Parrots, why are they natives of 



tropical climates 807 



Parrots, why do they suffer little 



from confinement 808 



Parrots, why do they chip and 



gnaw wood 809 



Parrot, what advantage results 



from the mobility of its upper 



mandible 810 



Parrot, why does it not construct 



a nest 513 



Parrot-fish, why so called ...1100 



Parrot-fish, why has it rounded 



jaws and scale-like teeth ... 1101 

 Passeres, pas-see' -rees, why called 



also incessores 685 



Pelican, why has it a large pouch 942 

 Petrels, why can they run on the 



surface of the water 938 



Pharyngonatha,./a- in-ffo-na'-tJia, 



why is the third sub-order of 



fishes so called 1096 



Pheasant, why does its plumage 



taper to a point 868 



Pheasants, why do they perch on 



larch trees 869 



Physomata, fy-snm-a'-ta, why is 



the sub-order of fishes so named 1046 

 Pigeons, why have they a puffed 



appearance at the breast ... 833 



Pigeons, how are young, fed by 



their parents *. 834 



Pigeon, why is the plumage of the 



rock, close and compact 836 



Pigeons, why is their plumage of a 



sombre hue 838 



Pigeons, how is their structure 



adapted to their powers of flight 839 

 Pigeon, why does the rock, prefer 



a white-washed house 840 



Pigeon, why does the rock, walk 



upon the sea-beach 841 



Pigeon, why is the song of the 



ringed, only heard in spring- and 



autumn ... ... ... ... 847 



Pigeons, why do they return to the 



place where they started from... 848 



Pigeons, power of flight 849 



Pigeon, why is the flesh of the 



wild, less delicate and palatable 



than that of the tame 851 



Pigs, why do they run about with 



straws in their mouths 470 



Pigs, why is it said that they cut 



their throats when swimming ... 472 

 Pike, why do they appear in ponds 



where none were before 1070 



Pike, why is theirpresence courted 



and shunned by smaller fish ... 1071 



