396 



INDEX. 



BAN 



CHE 



BAND-WOKM, the gigantic, 171 

 Banyan tree, the roots of the, 60 

 Barnacles, structure of, 175 

 Bat, formation of the, 321 



its wings, 321 



its cheek-pouches, 322 



its tongue, 349 



its flying membrane, 354 



organs of smell, 354 



their caution, 358 



Baya sparrow, nest of the, 307 



Beaks of birds, 293 



Bear, dentition of the, 340, 341 



his weapons of aggression and de- 



fence, 356 



parental affection of the ice-bear, 373 

 Beaver, formation of the, 320 



its burrows, 363 



and lodges, 364 



Bee, domestic economy of the, 231 

 Birds, 286 



their wings and rapidity of flight, 



286, 287 



their organization for aerial life, 287 



quill feathers and their uses, 288 



internal structure of birds, 289 



their beautiful colours, 220 



their legs, 290 



waders, 291 



swimmers, 292 



raptorial birds, 292 



perchers, 293 



beaks of birds, 293 



their tongues, 297 



their digestive apparatus, 299 

 the crop, 299 



the gizzard, 299 



their strength of vision, 300 



their uses in creation, 301 



their enemies, 302 



their nests, 302 



their heroism in defending their 



nests, 312 



their artifices in diverting the atten- 



tion of their enemies, 313 



their memory and intelligence, 314 



their migratory instinct, 315 

 Birgus latro, its mode of obtaining its 



food, 185 

 Bison, its strength and swiftness, 326 



its acuteness of smell, 352 



danger to be apprehended from him, 



359 

 Blossoms, 79 



their functions, 80 



Boas, their colossal strength, 277 

 Boatbill, beak of the, 296 

 Bombardier-beetles, their defences, 208 

 Botrylli, 146 



Bovista gigantea, its marvellously rapid 

 growth, 51 



Brachinus crepitans, its means of de- 

 fence, 208 

 Brachiopoda, 149 



Buenos Ayres, thistle forests of, 91 

 Buffalo African, its bird guardian, 371 



East Indian, his attack of the 



tiger, 358 



Buffalo-thorn, spikes of the, 68 

 Bunsen and Kirchhof, their discoveries 

 of the constituents of the solar atmo- 

 sphere and of the sun's central orb, 6 

 Burrowing rodents, 362 



other burrowers, 363, 379 

 Butterfly, wing of a, under the micro- 

 scope, 202 



its defence, 203 



Buzzard, his instinct in attacking snakes, 



284 

 Byssus, the, 150 



riADDICE-WOBMS, their means of 

 Ij defence, 209 

 Calyx of a plant, 79 

 Camel, stomach of the, 347 



his water-cells, 347 



Carbonic acid, its importance to the life 

 of plants, 17 



immense quantities of, in the early 



ages of the world, 42 

 Carnivora, teeth of, 340 

 Carpenter-bees, their nests, 227 

 Caryota horrida, formidable thorns of 



the, 68 



Cassida viridis, its defence against ene- 

 mies, 205 



Cassique, nest of the, 305 

 Cat, dentition of the, 341 



whiskers of the, 353 

 Caterpillars, their modes of defence, 



207, 208 



Cayman, its maternal affection, 280 

 Cephalopoda, their mode of taking their 



prey, 164 



Cereals, origin of the, 91 

 Cetaceans, tails of the, 336, 357 



their happiness, 380 



Ceylon, natural fortifications of thorn- 

 trees in, 69 



Chaetodons, their mode of taking their 

 prey, 263 



Chaffinch, its nest, 304 



Chameleon, its mode of locomotion, 273 



its tongue, 275 



its facility of changing colour, 275 



its eyes, 276 



Chamois, agility of the, 328, 369 



its sole-pads, 334 



its sense of smell, 352 

 Chartergus nidulans, nest of, 230 

 Cheek -pouches of mammalia, 350 



