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HOURS OF EXERCISE.
THE JUNGFRAU FROM INTERLAKEN.
HOURS OF EXERCISE
IN
THE ALPS.
BY
JOHN TYNDALL, LL.D., F.R.S.,
AUTHOR OF “FRAGMENTS OF SCIENCE FOR UNSCIENTIFIC PEOPLE,” “HEAT AS A MODE OF MOTION,” ETC., ETC.
NEW YORK:
D. APPLETON AND COMPANY,
72 FIFTH AVENUE.
1896.
Authorized Edition.