CONTRIBUTIONS TO
THE THEORY OF
NATURAL SELECTION.
A Series of Essays.
BY
ALFRED RUSSEL WALLACE,
AUTHOR OF
“THE MALAY ARCHIPELAGO,” ETC., ETC.
SECOND EDITION, WITH CORRECTIONS AND ADDITIONS.
New York:
MACMILLAN AND CO.
1871.
[The Right of Translation and Reproduction is reserved.]
LONDON:
PRINTED BY HEAD, HOLE & CO., FARRINGDON STREET,
AND IVY LANE, E.C.