THE

LITERARY AND SCIENTIFIC

CLASS BOOK,

EMBRACING THE

LEADING FACTS AND PRINCIPLES OF SCIENCE.

Xllustrated by Engravings,

WITH MANY DIFFICULT WORDS EXPLAINED AT THE HEADS OF THE

LESSONS, AND QUESTIONS ANNEXED FOR EXAMINATION ; DESIGNED AS
EXERCISES FOR THE READING AND STUDY OF THE HIGHER CLASSES
IN COMMON SCHOOLS,

SELECTED FROM THE

REV. JOHN PLATTS'

Literary and Scientific Class Book,

AND FROM VARIOUS OTHER SOURCES, AND ADAPTED TO THE WANTS AND

CONDITION OF YOUTH IN THE UNITED STATES.

BY LEVI W. LEONARD.

STEREOTYPED BY T. A. CARTER & co. BOSTON.

Keere, N. n.
PUBLISHED BY JOHN PRENTISS,

[Proprietor of the copy-right.) ;