MANUAL OF NATURAL HISTORY 169 



us to the next and more apathetic Radiate division 

 in which we see the locomotive organs begin to as- 

 sume the form of jointless tubercles and even simple 

 bristles, and where the ringed character of the skin 

 becomes less and less obvious. As we have seen 

 already in our sketch of the two former mighty- 

 zones of animal life, the Vertebrate and the Mol- 

 luscous, so shall we be led by the study of the 

 Annulose tribes to see many marvels of instinctive 

 sagacity, of constructive power, and of admirable 

 structure. We may be led to trace the changes 

 from infancy to fixed old age of the molluscous, 

 crab-like Barnacle ; we may investigate the moulting 

 of the Crustacean, read of the journeys of the Land- 

 Crab, smile on beholding the monstrous claws of 

 the Calling-Crab, or wonder at the ingenuity of the 

 Soldier -Crabs ; we may watch the ingenuity of 

 the artful, spinning Spiders with their curious foot- 

 brushes, egg-baskets, geometric webs, envenomed 

 bite and cruel cunning ; or admire with the Ento- 

 mologist the plumed antennae of the Gnats, the 

 symmetric honey-cells of the ingenious Hive-bees, 

 with their pollen-brushes, their pollen-baskets and 

 their wax-pockets, or praise the colonising Ant and 

 the paper-making Wasp, — examine the structure of 

 the houses of the Caddis-Flies, — the conical den of 

 the clever Ant-Lion, — the wondrous domes of the 

 methodical White- Ants, — or deplore the ravages of 

 the Plant-Lice, the Cockroaches, and the Locusts. 

 Perhaps the Zoologist looking yet among the tribes 

 with jointed skins, may pause to ponder on the 



