SUPPLEMENT 
TO THE 
Entomologists’ Directory 
CONTAINING THE 
NAMES, ADDRESSES, SPECIAL DEPARTMENTS OF 
STUDY, ETC., OF THOSE INTERESTED IN 
THE STUDY OF INSECT LIFE 
IN THE 
UNITED STATES AND CANADA. 
COMPILED BY 
HENRY SKINNER, M. D. 
Secretary op the American Entomological Society. 
PHILADELPHIA, l'A. 
ISSUED MARCH, 1904. 
