Page:Popular Science Monthly Volume 12.djvu/9

This page has been validated.

THE

POPULAR SCIENCE

MONTHLY.






CONDUCTED BY E. L. AND W. J. YOUMANS.




VOL. XII.

NOVEMBER, 1877, TO APRIL, 1878.




NEW YORK:
D. APPLETON AND COMPANY,

549 & 551 BROADWAY.
1878.