Reproduced from the Smithsonian Report, 1919. 



A COLLECTION OF DRAGON-FLIES OF THE ORDER ODONATA, WITH THEIR BEAUTI- 

 FUL GAUZE-LIKE WINGS. THEY ARE PERHAPS THE BEST FLIERS AMONG INSECTS , 

 PLAYING A USEFUL PART IN KEEPING DOWN INJURIOUS PEST WHICH THEY 

 CATCH ON THE WING 





