DIFFICULTY IN FINDING WAY. 251 
4 inches from the base of the pencil. I then put an 
ant to the larve; 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 point E, she 
dropped her larva and returned for another. When 
Fig. 12. 
iW 
WHE 
GG 
Routes followed in experiment No.1, as detailed above. 
A, position of pencil. B, paper bridge. c and D, glass with larve. 
£, point where larva dropped, the opposite arrow and loop marking 
return route. 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 on the glass, 
I moved it 3 inches, to D, so that the end of the glass 
was 6 inches from the base of the pencil. If she were 
much guided by sight, then she would have had little 
