£30 INTELLIGENT BEHAVIOUR 
investigated were affixed to stones on the banks of the Rhone. 
When a nest was partially constructed, the bee having flown 
off for more material, Fabre moved the stone to a new position, 
near at hand and easily visible from the original site. The 
bee went straight to the’ place where the nest had been, 
searched the immediate neighbourhood, flew off, and returned 
to the same spot to continue the search. If she came across 
her own nest in its new position she did not recognize it as 
hers, but left it after examination. But if a stone with the 
nest of another bee in about the same stage of construction 
was placed in the position occupied by her own, she adopted 
it. And when two nests near together, both half built, were 
transposed, each bee unhesitatingly adopted the nest which 
occupied the position where its own nest had been. It may 
well seem strange that, the general locality-memory being so 
well marked, the recognition of the particular stone and nest 
should be deficient. This may be due to the fact that the 
so-called compound eyes are the organs concerned in locality 
vision, while the ocelli deal with details at very close range, 
and that the former alone afford the requisite data for recog- 
nition; by their instrumentality alone arises the conscious 
situation which affords guidance in behaviour. And in that 
situation slight changes which for us make it “still the same 
but with a difference” render it no longer the same for a 
being of more limited intelligence—one probably incapable 
of analyzing the situation and seeing that the sameness 
preponderates over the difference. Be this as it may, the 
failure of a bee to recognize its own nest under circumstances 
so foreign to its experience as removal to a new spot may be 
paralleled with what I have observed in the case of sticklebacks. 
A nest had been built in a round glass bell jar which stood 
near a window. Some aquatic vegetation grew in the tank, 
and the nest was built on the window side. An experiment was 
made by turning the large bell jar through a right angle. The 
male stickleback searched for its nest in the old direction on 
the window side—that is to say, the same position in reference 
