Index 
248; crests of, 267; egg gs of, 436, 461; 
feet of, 368; Hight of, 329; flight of, 
compared with that of insect, 165; 
length of intestines in, 140; nest of 
Ruby-throated, 449; number of eggs 
laid by, 443; tongue of, 127; wing 
of, 320, 321, 325; wing-strokes of, 
82; worn-out breast-feather of, 44; 
Huxley, definition of paleontology, 2; 
Thomas, quoted, 2 
Hyoid, 111; of eagle, 114 
I 
Ibis, 239, 237; feet of Wood, 385; 
Indian Wood, beautiful feathers of, 61; 
Wood, resting upon whole foot, 102; 
Shell, 240 
Ichthyornis, lower jaw, 5; restored 
skeleton of, 3; structure of, 4 
Icthyosaurus, eye-plates of, 213 
Ilium, 89, 90; function of, "89; of bull- 
frog, gr 
Ingersoll, Ernest, quoted, 433 
Insects, use as food of birds, 148-152 
Intestines, function of, 141; length in 
Hummingbird, 140; length in Ostrich, 
140; in alligator, 141 
Iris of eye, 210; of Bald Eagle, 256; 
Cormorant, 256; Owl, 256; ° Puffin, 
256; Towhee, 256; Vireo, 256 
Ischium, 89, 90 
J 
Jabiru, atlas and axis of, 72 
Jaguar, standing on toes, ror 
Jellyfish, eggs of, 427 
Junco, eggs of, 434; nest of, 434; tail 
of, 414 
ik 
Kangaroo, feet of, 394, 395 
Keel, in Flamingo, 80; Hoatzin, re- 
pressed by crop, 132; model com- 
paring various, Albatross, Humming- 
bird, Pigeon, 83; value in classifica: 
tion of, 82 
Kingbird, crest of, 260 
Kingfisher, method of fishing of, 154; 
nest of, 444; New Zealand, food of, 
101 
Kinglet, Ruby-crowned, crest of, 260 
L 
Lacrymal glands, 211 
Lamprey, gill- basket of, 112 
Lark, foot of horned, 367; tail of 
meadow, 414; cause of colour change 
in Siberian black, 295, 297 
491 
Layers of cells in embryo, 470 
Leg, correlation with neck in Flamingo, 
281; in Swan, 282; Ee ie of, 
98- 102; function of, 8; of Ostrich, 
100; skeleton of an 99; human, 
99; scales of, 368; Spurs on, 382, 383; 
of Bald Eagle, 375; of Cassowary, 
394; of Flamingo, 388; of Golden 
Eagle, 375; of Secretary-bird, 378, 
379 
Life in the egg, 462-479; 
onic, 480 
Limbs, origin of, 96, 97; evolution of, 
96, 97; of embryo chick, 474, 475 
Lobed toes, of coots, 387; of phalaropes, 
384 
ocust birds, method of feeding, 150- 
152; relation of habits to food, 152 
Loon, in winter haunts, 6; neck of, 277 
Lory, tongue of 125 
Lungs, evolution of, 178, 
character of, 174, 175; 
of chameleon, 177, 178 
Lyre-bird, tail of, 420, 421 
post-embry- 
179, 180; 
cf. with those 
M 
Mallard, eclipse plumage of, 48. 49; 
tongue of, 122; trachea of, 168; 
syrinx drum of, 168, 170 
Mammals, used as food, 159 
Mankind vs. birds, 18 
Maoris, legends of, 13 
Martin, feet of European House, 381 
Merganser, bill of, 233, 234; crest of 
Hooded, 263 
Mimicry, of Hawk by Cuckoo, 311, 312; 
of Hawk by Hawk, 312 
Moa, cf. with Ostrich, 13; 
eggs laid by, 435 
Monkeys, toes of, 358 
number of 
Motmot, protective coloration of, 303; 
tail of Mexican, 424, 425, 426 
Moult, 40-53; of Black Grouse, 48; 
of Bob-white, 43; of Brown Pelican, 
41; causes for, 42-50; of body- 
feathers of English Sparrow, 52, 53; 
of wing-feathers of English Sparrow, 
46; of feathers, 41; of feather-tips, 
52, 53; of Mallard Duck, 47, 48, 40; 
of mound-builders, 44, 45; of Pen- 
guin, 51; of Ptarmigan, 48, 50, 51, 52; 
of reptiles, 40; of Robin, 43; in 
spring, 45; time of, 42-47 
Mouse. used as food, 157 
Murre, colour of eggs of, 431, 456; 
of, 406, 407; shape of ees of, 431 
Murrelets, wing of, 339, 
Muscle-plates, of smbiee thick, 69, 70 
Muscles, of body, 189, 190; cells of, 
tail 
