The Young Queens 
to bottom, during the workers’ absence, 
they would still unhesitatingly direct their 
course to it from out the far depths of the 
horizon; and only when confronted by 
the unrecognisable threshold would they 
seem for one instant to pause. Such ex- 
periments as lie in our power point rather 
to their guiding themselves by an extraor- 
dinarily minute and precise appreciation 
of landmarks. It is not the hive that 
they seem to remember, but its position, 
calculated to the minutest fraction, in its 
relation to neighbouring objects. And so 
marvellous is this appreciation, so mathe- 
matically certain, so profoundly inscribed 
in their memory, that if, after five months’ 
hibernation in some obscure cellar, the 
hive, when replaced on the platform, 
should be set a little to right or to left of 
its former position, all the workers, on 
their return from the earliest flowers, will 
infallibly steer their direct and unwavering 
16 241 
