Ripon, Wis 



SMITHSONIAN INSTITUTION. 



UNITED STATES NATIONAL MUSEUM. 



DIRECTIONS FOR COLLECTING AND PRESERV- 

 ING SCALE INSECTS (COCCID^). 





T. D. A. COCKERELL, 



Entomologist of the New Mexico Agricultural Experiment Station. 



Part L of Bulletin of the United States National Museum, No. 39. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1897. 



