HEROES OF SCIENCE.

HEROES OF SCIENCE.

BOTANISTS, ZOOLOGISTS, AND GEOLOGISTS.

BY
PROFESSOR P. MARTIN DUNCAN, F.R.S., F.L.S.,
VICE PRESIDENT OF THE GEOLOGICAL SOCIETY;
HONORARY FELLOW OF KING’S COLLEGE, LONDON.

PUBLISHED UNDER THE DIRECTION OF THE COMMITTEE
OF GENERAL LITERATURE AND EDUCATION APPOINTED BY THE
SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE.

LONDON:
SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE;
NORTHUMBERLAND AVENUE, CHARING CROSS;
43, QUEEN VICTORIA STREET; 48, PICCADILLY;
AND 135, NORTH STREET, BRIGHTON.
NEW YORK: E. & J. B. YOUNG AND CO.
1882.