SMITHSONIAN INSTITUTION. 



UNITED STATES NATIONAL MUSEUM. 



DIRECTIONS FOR COLLECTING AND 

 PRESERVING INSECTS. 



0. V. RILEY, M. A., Ph. D., 



Honorary Curator o_f the Department of Insects^ U. S. National Museum. 



Part F of BuUetia of the United States National Museum, No. 39 

 (wiih one plate). 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE 

 1S92. 



