320 Poachers and Poaching. 



In Sumatra Mr. Wallace found a large butterfly 

 its upper surface of a rich purple and with a 

 broad bar of deep orange crossing each wing. 

 The species is found in dry woods and thickets, 

 and when on the wing is very conspicuous, 

 Among the bush and dry leaves the naturalist 

 was never able to capture a specimen ; for, 

 however carefully he crept to the spot where 

 the insect had settled, he could never discover 

 it until it suddenly started out again. But upon 

 one occasion he was fortunate enough to note 

 the exact spot where the butterfly settled, and, 

 although it was lost sight of for some time, he at 

 length discovered it close before his eyes. In its 

 position of repose it exactly resembled a dead 

 leaf attached to a twig. 



So in our own country we may observe that 

 the purple emperor butterfly affects certain of the 

 brightly coloured w r ild geraniums, upon which, 

 in repose it is almost impossible to detect it. 

 The brown-spotted fritillaries of our birch woods 

 also offer examples of this class, it being difficult 

 to detect them against the fungus-pitted leaves of 

 every shade of brown and dun and yellow. 



VII. 

 HOW THE WORLD IS FERTILISED. 



IN approaching the subject of the geographical 

 distribution of animals and plants, one is struck 



