CONTENTS 



Proceedings of the Seventh Annual Meeting of the Pacific Slope Branch 

 of the American Association of Economic Entomologists 



Part I. Business • 387 



Part II. Papers 



The Sugar-Beet Root-Maggott, Tetanops aldrichi Hendl., a New Pest of 

 Sugar-Beets /. M. Hawley 388 



Metallic Mercury as an Insecticide, A. 0. Larson 391 



Peach Twig-Borer Experiments in California, W. P. Duruz 395 



Resistance of Certain Scale Insects in Certain Localities to Hydrocyanic 

 Acid Fumigation, H. J. Quayle 400 



Facts Concerning Migration of Beet Leafhopper, Eutettex tenella Baker, 

 in Sacramento Valley of California, 



H. H. P. Severin and A . J. Basinger 404 



Facts Concerning Natural Breeding Area of Beet Leafhopper, Eutettex 

 tenella Baker, in San Joaquin Valley of California, 



H. H. P. Severin and A. J. Basinger 411 



Informal Talk, L. 0. Howard 420 



Nicotine Delivery from Dust Carriers, W. Rudolfs 421 



Is the House-fly in its Natural Environment Attracted to Carbon Dioxide, 



C. H, Richardson and E, H. Richardson 425 



The Ability of Queen and Drone Honeybees to Feed Themselves, 



E. F. Phillips 430 



Scientific Notes 432 



Editorial 435 



Current Notes 435 



Pacific Slope Notes 440 



Horticultural Inspection Notes 440 



