INDEX. 



Abyssinia, 41, 356 

 Acacia, 6, 98, 306 

 Acids, 35, 136 

 Africa, i, 6, 98 



,, South, 66, no, 112, 115 

 Air, ig, 164, 176 



,, moisture in, 19, 125 

 Agave, 353 

 Albumin, 158 

 Aloe, American, 193, 353 

 America, plants Irom, 353-4 ; taken 



to. 354-7 

 Ant-eaters, 88 

 Ants, 82-87, 241, 306-9 

 Apple, 219-20 



,, wild, 276, 354 

 Arabs, 349-50 

 Arbor-day, 121 

 Artichoke, Jerusalem, 344, 355 ; wild, 



3, 146, 297, 358 

 Ash in plants, 16, 140-4, 145 

 Asia, plants from, 345-52 

 Australia, 97, 266, 357 



Balance of life, 334-6 



Bananas, 162 



Bark, 91 



Basalt, 20 



Beans, 13, 280 



Beavers, 45 



Bees, 215-22, 227, 230 



,, colours preferred by, 225 

 ,, fiowers shunned by, 224 

 ,, humble, 13, 218, 225, 227, 232 

 ,, protection against, 244 



Beetles, 70, 236, 310, 329, 335 



Bindweed, 52, 233 



Birds, 313 



Birds, destruction of, 314, 316-17 

 ,, as seed- carriers, 261-73 

 ,, fertilization by, 224, 234 



Bison hollows, 58 



Black cap, 320 



Black earth, 61, 62, 134, 146 



Blossom, size of, 193-4 

 ,, structure of, 194 



Blossoming, 193 



Bourbon, Isle of, 323 



Brazil-nuts, 265, 290 



Breathing, 174 



Buckwheat, 352 



Bulbous plants, 173, 192 



Burrowing animals, 63 



Burs, 265-7 



Butterflies, 229, 311 



Cabbage, 96, 103, 159, 279 

 Cactus, 35, 36, 98-9, III, 353, 358 

 Canadian fleabane, 343 

 Carbon, 160, 162, 167, 173-5 



,, dioxide, 22, 161, 164 

 Carnivorous plants, 149 

 Carses, 44 

 Catkins, 209 



Caterpillars, 310-11, 320, 321 

 Cattle, influence of, 276, 292, 294 

 Cedar, red, 272 

 Cells, 167-9 

 Ceylon, sand-bars of, 53 



,, cinnamon in, 271 



,, vine in, 187 

 Cherry, 348 

 China, agriculture in, 347 



,, plants from, 348, 351 



,, weeds in, 343 

 Chinese gardeners, 176 



