SIR JOHN LUBBOCK ON ANX9, BEES, AND WASPS. 



477 



Eeturned at 12.31 12.35 stranger to m. 



12.36 

 12.44 

 12.46 

 12.50 

 12.54 

 12.59 

 1. 1 

 I then put her into a small bottle. 



I let them out again at 7.10 on the 27th. Though the interval 

 was so long, they began at once to work ; but one unfortunately 

 met with an accident. The otlier returned as follows, viz. at 

 7.20 

 7.30 

 7.40 



7.48 stranger to m, 

 7.46 

 7.51 

 7.55 

 7.59 



In these experiments, therefore, 17 strangers came ; but at the 

 point n they all took the wrong turn, and not one reached tlie 

 larvae. 



Although the observations above recorded seem to me almost 

 conclusive, still I varied the experiments once 

 more (see fig. 3), making the connexion between 

 the board B and the glass containing the larvae by 

 three separate, but similar strips of paper, d, e, 

 andyjas shown in the figure. Whenever, how- 

 ever, a strange ant came, I took up the strip jT 

 and rubbed my finger over it two or three times 

 so as to remove any scent, and then replaced it. 

 As soon as the stranger had reached the paper e, 

 I took up the strip d, and placed it so as to con- 

 nect e with the empty glass m. Thus I escaped the necessity of 

 changing the paper yj and yet had a scented bridge between e and 

 m. The results were as follows : — 



Jan. 27. At 5.30 I let out the same two ants as were under ob- 

 servation in the preceding experiments. 



