This page has been validated.
THE
POPULAR SCIENCE
MONTHLY.
CONDUCTED BY E. L. Youman.
VOL. VII.
MAY, 1875, TO OCTOBER, 1875.
NEW YORK:
D. APPLETON AND COMPANY,
549 & 551 Broadway
1875.
THE
POPULAR SCIENCE
MONTHLY.
CONDUCTED BY E. L. Youman.
VOL. VII.
MAY, 1875, TO OCTOBER, 1875.
NEW YORK:
D. APPLETON AND COMPANY,
549 & 551 Broadway
1875.