Page:Popular Science Monthly Volume 43.djvu/7

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ESTABLISHED BY EDWARD L. YOUMANS.







THE


POPULAR SCIENCE


MONTHLY.






EDITED BY WILLIAM JAY YOUMANS




VOL. XLIII.

MAY TO OCTOBER 1893.




NEW YORK:
D. APPLETON AND COMPANY,

1, 3, and 5 BOND STREET.
1893.