DIFflCULTY IN FINDING WAY. 25\ 



4 inchco from the base of the pencih I then put aii 

 ant to the larvae ; when she had become acquainted 

 with the road, she went very straight, as is shown in 

 the woodcut [Fig. 12). In one case^, at the p(»int E, she 

 litopped her larva and returned for another. When 

 Fiff. 12. 



Ktnites followed in experiment No. I, as detailed above. 



A, position of jienoil. B, paper l)ridge. c and D, glass with hirs'iu. 

 e, point where larva dropped, the opposite arrow and loop marking 

 return ronte. 1,2, 3, 4, comparatively straight paths to the glass. 

 5, 5, circuitous route on shifting of glass. ^ different access to nest. 



she returned on the next journey and was oii the glass, 

 I moved it 3 inches, to D, so that the end of the glass 

 was 6 inches from the base of the pencih If she were 

 much gtiided by sight, then she would have had little 



