APPLETONS' POPULAR SCIENCE MONTHLY
Reading edition
EDITED BY WILLIAM JAY YOUMANS
VOL. LVI NOVEMBER, 1899 TO APRIL, 1900
NEW YORK D. APPLETON AND COMPANY 1900
Copyright, 1900, By D. APPLETON AND COMPANY.
FREDERICK C. SELOUS.
APPLETONS' POPULAR SCIENCE MONTHLY.
DECEMBER, 1899.