A HANDBOOK OF 
THE DRAGONFLIES OF 
NORTH AMERICA 
BY 
JAMES G. NEEDHAM 
PROFESSOR OF ENTOMOLOGY AND LIMNOLOGY 
CORNELL UNIVERSITY, ITHACA 
AND 
HortTENSE ButTLER HEywoop 
ASSISTED BY SPECIALISTS IN CERTAIN GROUPS 

1929 
CHARLES C THOMAS -: PUBLISHER 
SPRINGFIELD, ILLINOIS 
BALTIMORE, MARYLAND 
