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THE
ORIGIN OF SPECIES
BY MEANS OF NATURAL SELECTION
OR THE
PRESERVATION OF FAVOURED RACES IN THE STRUGGLE
FOR LIFE.
By CHARLES DARWIN, M.A., F.R.S., &c.
SIXTH EDITION, WITH ADDITIONS AND CORRECTIONS.
(THIRTEENTH THOUSAND.)
LONDON
JOHN MURRAY, ALBEMARLE STREET.
1873.
