BOARD OF
ILLINOIS STATE MUSEUM ADVISORS
M. M. Leighton, Ph. D., _Chairman_
Illinois Geological Survey, Urbana
Everett P. Coleman, M. D.
Coleman Clinic
Canton
Percival Robertson, Ph. D.
The Principia College
Elsah
N. W. McGee, Ph. D.
North Central College
Naperville
Sol Tax, Ph. D.
University of Chicago
Chicago
Copyright by
ILLINOIS STATE MUSEUM
1958
STATE OF ILLINOIS
William G. Stratton, _Governor_
DEPT. OF REGISTRATION & EDUCATION—ILLINOIS STATE MUSEUM
Vera M. Binks, _Director_ Thorne Deuel, _Museum Director_
STORY OF ILLINOIS SERIES, No. 9