Page:Popular Science Monthly Volume 56.djvu/5

From Wikisource
Jump to navigation Jump to search
This page has been validated.


ESTABLISHED BY EDWARD L. YOUMANS.


 
 

APPLETON’S

 

POPULAR SCIENCE

 

MONTHLY


 

EDITED BY WILLIAM JAY YOUMANS

 

VOL. LVI

 

NOVEMBER, 1899, TO APRIL, 1900

 

NEW YORK:
D. APPLETON AND COMPANY,

1900