JOURNAL OF RESEARCHES

INTO THE

NATURAL HISTORY AND GEOLOGY

OF THE

COUNTRIES VISITED DURING THE VOYAGE OF

H.M.S. BEAGLE ROUND THE WORLD,

UNDER THE

Command of Capt. Fitz Roy, R. N.

By CHARLES DARWIN, M.A., F.R.S.

AUTHOR OF 'ORIGIN OF SPECIES,' ETC.

TENTH THOUSAND.

LONDON:

JOHN MURRAY, ALBEMARLE STREET.

1860.