< Page:Popular Science Monthly Volume 55.djvu
This page has been validated.

ESTABLISHED BY EDWARD L. YOUMANS.



APPLETON’S

POPULAR SCIENCE

MONTHLY






EDITED BY WILLIAM JAY YOUMANS




VOL. LV

MAY TO OCTOBER, 1899




NEW YORK
D. APPLETON AND COMPANY
1899

    This article is issued from Wikisource. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.