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Page:Popular Science Monthly Volume 18.djvu/9

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THE

 

POPULAR SCIENCE

 

MONTHLY.

 

CONDUCTED BY E. L. and W. J. Youmans.

 

VOL. XVII.

 
NOVEMBER, 1880, TO APRIL, 1881
 

NEW YORK:
D. APPLETON AND COMPANY,
1, 3, and 5 Bond Street
1881.