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THE
POPULAR SCIENCE
MONTHLY.
CONDUCTED BY E. L. YOUMANS
VOL. V.
MAY TO OCTOBER, 1874
NEW YORK:
D. APPLETON AND COMPANY,
549 & 551 BROADWAY.
1879.
THE
POPULAR SCIENCE
MONTHLY.
CONDUCTED BY E. L. YOUMANS
VOL. V.
MAY TO OCTOBER, 1874
NEW YORK:
D. APPLETON AND COMPANY,
549 & 551 BROADWAY.
1879.