152 Iubback’s Observations on Bees and Ants. [ March, 
look and nervous, guilty agitation, once seen, can never be mis- 
taken.” It is at any rate natural that a bee which enters a wrong 
hive by accident should be much surprised and alarmed, and 
would thus probably betray herself. 
Off the whole, then, I do not attach much importance to their 
recognition of one another as an indication of intelligence. 
I had made some observations also with the view of ascertaining 
whether the bees which collect honey also work in the hive and 
attend to the brood, or whether they devote themselves exclu- 
sively to one or other of these duties.. My observations, how- 
ever, were not conclusive; but some light has been thrown on the 
subject by Dzierzon, from which it would appear that for the first 
fortnight of a bee’s life she attends exclusively to in-door duties, 
and only afterwards takes to the collection of honey and pollen. 
Dzierzon’s statements have been confirmed by Dr. Dönhoff. On 
‘the 18th of April he introduced a Ligurian queen into a hive of 
black bees. The first Ligurian workers emerged on the 10th of 
May, and made their first appearance outside the hive on the 
17th ; but not until the 25th did any of the Ligurian workers 
appear on his feeding-troughs, which were constantly crowded 
with common bees, nor were any seen to visit the flowers. Re- 
peated observations, says Dr. Dönhoff, ‘force me to conclude 
that during the first two weeks of the worker-bee’s life the im- 
pulse for gathering honey and pollen does not exist, or at least is 
not developed, and that the development of this impulse pro- 
ceeds slowly and gradually. At first the young bee will not even 
touch the honey presented to her; some days later she will sim- 
ply taste it; and only after a lapse of time will she consume it 
eagerly. Two weeks elapse before she readily eats honey ; ; and 
nearly three weeks pass before the gathering impulse is suffi- 
ciently developed to impel her to fly abroad and seek for honey 
and pollen among the flowers.” 1 
In my first memoir I alluded to the difficulty which bees expe- 
rience in finding their way about. In this respect they certainly 
differ considerably. Some of the bees which came out through 
the little postern door (already described) were able to find their 
way back after it had been shown to them a few times. Others 
were much more stupid; thus, one bee came out on the 9th, 
lith, 12th, 14th, 15th, 16th, 17th, 18th, and 19th, and came to 
the honey ; but though I repeatedly put her back through the 
postern, she was never able to find her way for herself. 
1 Hive and Honey Bee, Langstroth, p. 195. 
