See page in:
1859
1860
1861
1866
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1872

Compare with:
1859
1861
1866
1869
1872

in Switzerland the slaves 1859 1860 1861
the slaves in Switzerland 1866 1869 1872

of F. sanguinea from 1860 1861 1866 1869 1872
from 1859

(instead of being carried by, as in the case of F. rufescens) 1860
as Huber has described, 1859
OMIT 1861 1866 1869 1872

jaws. 1859 1860
jaws instead of being carried by them, as in the case of F. rufescens. 1861 1866 1869 1872

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.
One day I fortunately
chanced to
....
witness
witnessed
a migration of F. sanguinea from one nest to another, and it was a most interesting spectacle to behold the masters carefully
carrying,
carrying
(instead of being carried by, as in the case of F. rufescens) their slaves in their jaws. Another day my attention was struck by about a score of the
slavemakers
slave-makers
haunting the same spot, and evidently not in search of food; they approached and were vigorously repulsed by an independent community of the
slave species
slavespecies
slave-species
(F. fusca); sometimes as many as three of these ants clinging to the legs of the slave-making F. sanguinea. The latter ruthlessly killed their small opponents, and carried their dead bodies as food to their nest, twenty-nine yards distant; but they were prevented from getting any pupæ to rear as slaves. I then dug up a small parcel of the pupæ of F. fusca from another nest, and put them down on a bare spot near the place of combat; they were eagerly
seized
seized,
and carried off by the tyrants, who perhaps fancied that, after all, they had been victorious in their late combat.