BOSTON:
JAMES R. OSGOOD AND COMPANY,
Late Ticknor & Fields, and Fields, Osgood, & Co.
1871.
Entered according to Act of Congress, in the year 1865, by
A L E X A N D E R A G A S S I Z,
in the Clerk's Office of the District Court
for the District of Massachusetts.
University Press:
Welch, Bigelow, and Company,
Cambridge.
THIS LITTLE BOOK
IS AFFECTIONATELY DEDICATED BY THE AUTHORS TO
PROFESSOR L. AGASSIZ,