A

SCHOOL COMPENDIUM

OF

NATURAL AND EXPERIMENTAL

PHILOSOPHY,

EMBRACING THE ELEMENTARY PRINCIPLES OF

MECHANICS, HYDROSTATICS, HYDRAUICS, PNEUMATICS, ACOUSTICS, PYRONOMICS, OPTICS, ELECTRICITY, GALVANISM, MAGNETIC, ELECTRO-MAGNETIC, MAGNETO-ELECTRICITY,
AND ASTRONOMY.

CONTAINING ALSO A DESCRIPTION OF THE

STEAM AND LOCOMOTIVE ENGINES,

AND OF THE

ELECTRO – MAGNETIC TELEGRAPH.

BY

RICHARD GREEN PARKER, A.M.

LATE PRINCIPLE OF THE JOHNSON GRAMMAR SCHOOL, BOSTON ; AUTHOR OF AIDS TO ENGLISH COMPOSITION," A SERIES OF " SCHOOL READERS," "GEOGRAPHICAL QUESTIONS," ETC. ETC.

Delectando pariter que monendo Prodesse quam conspici.

A NEW EDITION, CORRECTED, ENLARGED AND IMPROVED.

NEW YORK:
A. S. BARNES & CO., 51 JOHN
STREET. CINCINATI: H. W. DERBY.
1854.

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Copyright © 1996 Electronic Historical Publications