general reader, who desires to know more of Darwin's work, and the student
of geology, who naturally wishes to know how a master mind reasoned on most
important geological subjects, will be glad of the opportunity of
possessing them in a convenient and cheap form.

The three introductions, which my friend Professor Judd has kindly
furnished, give critical and historical information which makes this
edition of special value.

G.T.B.




PLATE I. GEOLOGICAL SECTIONS THROUGH THE CORDILLERAS.

SECTION 1/1. SECTION OF THE PEUQUENES OR PORTILLO PASS OF THE CORDILLERA.

SECTION 1/2. SECTION OF THE CUMBRE OR USPALLATA PASS.

SECTION 1/3. SECTION OF THE VALLEY OF COPIAPO TO THE BASE OF THE MAIN
CORDILLERA.


PLATE II. MAP OF SOUTHERN PORTION OF SOUTH AMERICA.



TABLE OF CONTENTS.