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(F. fusca) are 1860 1861 1866 1869 1872
are 1859

the British Museum, to whom I am much indebted for information on this and other subjects. Although fully trusting to the statements of Huber and Mr. Smith, I tried to approach the subject in a sceptical frame of mind, as any one may well be excused for doubting the
existence
truth
of so extraordinary
and odious
and odious
an instinct as that of making slaves.
Hence,
Hence
I will give the observations which I
have myself
have myself
made, in some little detail. I opened fourteen nests of F. sanguinea, and found a few slaves in all. Males and fertile females of the
slave species
slave-species
(F. fusca) are found only in their own proper communities, and have never been observed in the nests of F. sanguinea. The slaves are black and not above half the size of their red masters, so that the contrast in their appearance is
very
very
great. When the nest is slightly disturbed, the slaves occasionally come out, and like their masters are much agitated and defend the nest: when the nest is much
disturbed,
disturbed
and the larvæ and pupæ are exposed, the slaves work energetically
together with
with
their masters in carrying them away to a place of safety. Hence, it is clear, that the slaves feel quite at home. During the months of June and July, on three successive years, I
have
have
watched for many hours several nests in Surrey and Sussex, and never saw a slave either leave or enter a nest. As, during these months, the slaves are very few in number, I thought that they might behave differently when more numerous; but Mr. Smith informs me that he has watched the nests at various hours during May,
June,
June
and August, both in Surrey and Hampshire, and has never seen the slaves,
though
through
present in large numbers in August, either leave or enter the nest. Hence he considers them as strictly household slaves. The masters, on the other hand, may be constantly seen bringing in materials for the nest, and food of all kinds. During the
present
present
year
year,
1860, however,
however,
in the month