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THE
POPULAR SCIENCE
MONTHLY.
CONDUCTED BY E. L. and W. J. Youman.
VOL. XXXVIII.
November, 1890, to April, 1891
NEW YORK:
D. APPLETON AND COMPANY,
1, 3, and 5 Bond Street
1891.
THE
POPULAR SCIENCE
MONTHLY.
CONDUCTED BY E. L. and W. J. Youman.
VOL. XXXVIII.
November, 1890, to April, 1891
NEW YORK:
D. APPLETON AND COMPANY,
1, 3, and 5 Bond Street
1891.