142 ANBIAL INTELLIGENCE. 



each other two such mutilated bodies of the F. rufibarbis. They 

 conversed with each other in the above-described way, and ap- 

 peared each to beg for help. But when he put in some simi- 

 larly mutilated ants of a hostile species, F sanyuinea, the 

 picture was changed; war broke out between these cripples 

 just in the same way and with the same fury as between per- 

 fect ants. 1 



The antennae appear to be the most important of the 

 sense-organs, as their removal produces an extraordinary 

 disturbance in the intelligence of the animal. An ant so 

 mutilated can no longer find its way or recognise com- 

 panions, and therefore is unable to distinguish between 

 friends and foes. It is also unable to find food, ceases to 

 engage in any labour, and loses all its regard for larvae, 

 remaining permanently quiet and almost motionless. A 

 somewhat similar disturbance, or rather destruction, of the 

 mental faculties is observable as a result of the same 

 mutilation in the case of bees. 2 



1 Biichner, Geisteslelen der Thiere, English translation, p. 49. 



* While this work is passing through the press, an interesting 

 Essay has been published by Mr. MacCook on the Honey-making Ant. 

 I am not here able to refer to this Essay at greater length, but have 

 done so in a review in Nature (March 2, 1882.) G. J. E. 



