reason alone human interpretations of intelligence 

 in arthropods are apt to err; judging their actions 

 from the human standpoint, we are prone to put 

 behind them human personalities. Consequently, 

 to fathom what passes for the mind of a crustacean, 

 should seem to be beyond all bounds of possibility. 



Yet this very thing is possible — but only be- 

 cause reason, as this property is commonly con- 

 ceived, is not part of the equipment of the crab. 

 In short, intelligence, as such, has little to do with 

 that which has long been held as the primary proof 

 of this capacity in the crab : that is to say, conceal- 

 ment by the choice of colors in camouflage. 



Evidence of this, I think, will be amply revealed 

 in what follows. 



Ill 



Thus far the procedure of my experiments had 

 not departed greatly from that of other research 

 workers whose literature had thrown such luster 

 on this crustacean. But if my methods and the im- 

 mediate results therefrom lacked originality, the 

 conclusions I formed regarding them were novel. 

 My previous faith in the famed and superior men- 

 tality of the spider-crab began to give way to 



[240] 



