864 



EXPEEIMENTS WITH 



the larvae. She at once picked one up, and, with some 

 little guidance from me, carried it off to the nest, 

 returning at once for another, bringing some friends 

 with her to help. When she knew her way, I gradually 

 moved the cup across the table along the paper path 



Fig. 28. 



tf) M, placmg it on a column five inches high. Aftei 

 a while the ants came to know the way quite well, 

 and passed straight along the path from the nest to 

 the larvae at M. Having thus established a service ol 

 ants, I tried the following experiments : — 



1. I removed the piece of paper G r. This dis- 



