SIB JOUN LUBBOCK ON ANTS, BEES, AND WASPS. 273 



12.13 N3 came. 12.15 went. 



12.14 N4 „ 12.15 „ 

 12.17 stranger came. 



12.30 N4 came. 12.32 went. 



„ a stranger came. 



„ N8 (was disturbed) 



12.37 „ 

 12.38 N4 came. 12.40 „ 

 12.42 N3 „ 

 12.47 N4 „ 12.49 „ 



Thus during these three hours only six strangers came. The 

 raisin must have seemed almost inexhaustible, and the watched 

 ants in passing and repassing went close to many of their friends ; 

 they took no notice of them, however, and did not bring any out 

 of the nest to cooperate with them in securing the food, though 

 their regular visits showed how much they appreciated it. 



Again (on the 15th July) an ant belonging to one of my nests 

 oi Formica fusca was out hunting. At 8.8 I put a spoonful of 

 honey before her. She fed tilt 8.24, when she returned to the nest. 

 Several others were running about. She returned as follows : — 

 9.10 to the honey, but was disturbed, ran away, and 

 returned at 10.40. At 1 0.53 to the nest ; 

 11.30 „ 11.40 



12.5, but was disturbed ; she ran away again, but 



During the whole day she brought no friend, and only one 

 other ant found the honey, evidently an independent discovery. 



Experiments testing Commtmieation hy Sound. 



To test the power which ants might have of summoning one 

 another by sound, I tried the following experiments. I put oiij 

 on the board where one of my nests oi' Lasius flavus was usually 



