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Darwin, Charles, 1809-1882

"On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life"

Hence, it is
clear, that the slaves feel quite at home. During the months of June
and July, on three successive years, I 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 and August, both in Surrey and
Hampshire, and has never seen the slaves, though 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 year, however, in the month of July, I came
across a community with an unusually large stock of slaves, and I
observed a few slaves mingled with their masters leaving the nest, and
marching along the same road to a tall Scotch-fir-tree, twenty-five
yards distant, which they ascended together, probably in search of
aphides or cocci. According to Huber, who had ample opportunities for
observation, in Switzerland the slaves habitually work with their
masters in making the nest, and they alone open and close the doors in
the morning and evening; and, as Huber expressly states, their
principal office is to search for aphides. This difference in the
usual habits of the masters and slaves in the two countries, probably
depends merely on the slaves being captured in greater numbers in
Switzerland than in England.


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