Page:Popular Science Monthly Volume 38.djvu/7
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ESTABLISHED BY EDWARD L. YOUMANS.
THE
POPULAR SCIENCE
MONTHLY.
EDITED BY WILLIAM JAY YOUMANS
VOL. XXXVIII.
NOVEMBER, 1890, TO APRIL 1891.
NEW YORK:
D. APPLETON AND COMPANY,
1, 3, and 5 BOND STREET.
1891.