Page:Popular Science Monthly Volume 37.djvu/7

ESTABLISHED BY EDWARD L. YOUMANS.

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THE

 

POPULAR SCIENCE

 

MONTHLY.

 

EDITED BY WILLIAM JAY YOUMANS

 

VOL. XXXVII.

 

MAY TO OCTOBER, 1890.

 

NEW YORK:
D. APPLETON AND COMPANY,
1, 3, and 5 BOND STREET.
1890.