Established by Edward L. Youmans

APPLETONS'
POPULAR SCIENCE
MONTHLY

EDITED BY
WILLIAM JAY YOUMANS

VOL. LV
MAY TO OCTOBER, 1899

NEW YORK
D. APPLETON AND COMPANY
1899

WILLIAM PENGELLY.

APPLETONS' POPULAR SCIENCE MONTHLY.

FEBRUARY, 1899.

ALASKA AND THE KLONDIKE.
A JOURNEY TO THE NEW ELDORADO.

By ANGELO HEILPRIN,

PROFESSOR OF GEOLOGY AT THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA, FELLOW OF THE ROYAL GEOGRAPHICAL SOCIETY OF LONDON.