SIMPLE, ENTERTAINING, AND INEXPENSIVE EXPERI-
MENTS IN THE PHENOMENA OF SOUND,

FOR THE USE OF STUDENTS

OF EVERY AGE.

BY

ALFRED MARSHALL MAYER,

Professor of Physics in the Stevens Institute of Technology. Member of the
National Academy of Sciences; of the American Philosophical Society,
Philadelphia; of the American Academy of Arts and Sciences,
Boston; of the New York Academy of Sciences; of the

German Astronomical Society; of the American

Otological Society; and Honorary Member of

the New York Ophthalmological Society.

NEW YORK:

D. APPLETON AND COMPANY,
549 AND 551 BROADWAY.

1878.

Edie T338.78.556

HARVARD COLLEGE LLARY
GIFT OF THE

NEWTON FREE LIBRARY
AUG 9 1934

COPYRIGHT BY

ALFRED M. MAYER,

1878.