INSTANCES OF THE WONDER OF LIFE xiii 



PAGE 



inter-relations of mussels and minnows .... 273 



inter-relations of bees and flowers ..... 275 



pollination of the fig. ....... 280 



ambrosia ......... 282 



inter-relations of a pitcher -plant 283 



inter-relations of ants and plants ..... 285 



shelter-associations among animals ..... 290 



relations between fierasfers and sea -cucumbers . . . 290 



partnership between painted fish and sea -anemone . . 293 



commensalism of hermit-crabs and sea-anemones . . 294 



symbiosis of Algae in animals ...... 295 



the double nature of lichens ...... 297 



partner microbes ........ 299 



the adaptations of parasites ...... 302 



grouse-disease ........ 303 



the extraordinary life-history of the liver-fluke . . . 307 



the story of Sacculina 309 



the story of ox- warbles . . . . . . .310 



the production of galls . . . . . . . 312 



the formation of pearls . . . . . . .313 



habits of the cuckoo 315 



the gregariousness of fiddler-crabs ..... 324 



division of labour among ants ...... 326 



tailor-ants using larvae as needle and thread . . . 328 



a primitive form of ant-society. ..... 331 



division of labour among Termites ..... 333 



reserve ' kings and queens ' among Termites . . . 334 



signalling among Termites ...... 336 



economy of the bee-hive ....... 339 



hive-bees nesting in a tree 340 



evolution of social bees . . . . ' . . 341 



year's life of humble-bee 343 



nest of a wasp 345 



animal societies 345 



viscacha villages ........ 350 



domestication of aphides by ants . . . . .351 



guests and pets of ants 352 



slave -making among ants 354 



the relations of birds and insects 359 



house-flies as distributors of disease . . 359 



