312 POWER OF COMMUNICATION. 



and brought no friend. This wasp returned the next 

 morning at 6 A.M. 



Experiment 5. — A wasp was watched from 11.56 

 A.M. to 5.36 P.M. She made twenty-three journeys, 

 without bringing a friend 



Experiment 6. — Another wasp between 6.40 a.m. 

 and 5.55 p.m. made sixty journeys, without bringing a 

 friend. 



Experiment 7. — Another wasp between 7.25 A.M. 

 and 6.43 p.m. made no less than ninety-four visits to 

 the honey, but did not bring a single friend. 



Experiment 8. — I watched a wasp on September 19. 

 She passed regularly backwards and forwards between the 

 nest and the honey, but during the whole day only one 

 other wasp came of herself to the honey ; this wasp 

 returned on the 20th, but not one other. The 21st was 

 a hot day, and there were many wasps about the house ; 

 my honey was regularly visited by the two marked wasps, 

 but during the whole day only five others came to it. 



September 22. — Again only one strange wasp came, 

 up to one o'clock. 



September 27. — Only one strange wasp came 



October 2 and 3. — These days were cold ; a few 

 marked bees and wasps came to my honey, but no 

 strangers. 



October 4. — Two strangers. 



October 6. — Only one stranger. 



On these days the honey was watched almost with« 



