CONTENTS 



PAGE 



American Association of Economic Entomologists, Report of Special California 

 Meeting ^^-^ 



Comments on Organization in Agricultural College Extension Work in 

 Economic Entomology A- (^ooley 442 



The Woolly Aphis as a Pear Pest ^ G. P. Weldon 450 



Some Results of the Introduction of Beneficial Insects in the Hawaiian 



Islands ■ 0. H, Swezey 450 



Spraying Notes on the Control of the Fruit Tree Leaf-Roller in the Hood 



River VaUey Leroy Childs 457 



A Preliminary Statement Regarding Wool Maggots of Sheep in the United 



gl^ates C'- Bishopp and E. W. Laake 466 



Field Notes on Grasshopper Outbreaks K D. Ball 475 



The Effect of Cold Storage Temperatures upon the Eggs and Larvae of the 



Mediterranean Fruit Fly ^ A Back and C. E. Pemherton 475 



Varying Susceptibility of the San Jose Scale to Sprays A.L. Melander 475 



The Toxic Values of the Arsenates of Lead H. F. Tartar and H. F. Wilson 481 



Sulfur as an Insecticide ^ G. P. Gray 487 



A Comparative Study of a Series of Aphid-Feeding CoccineUidae 



Notes on the Habits and Control of the Chicken Flea J. F. Illingworth 492 



Some Phases of Gipsy Moth Work in New England i A. F. Burgess 496 



The Distribution of the Beet Leaf-Hopper 1 E.D.Bali 496 



The Influence of Rainfall and the Non-Burning of Trash on the Abundance 



of Diatr(Ba saccharalis G. N, Wolcott 496 



Grvllotalva gryllotalpa Linn., the European Mole Cricket in New Jersey ^ ^ 



^ ^ H, B. Weiss 500 



Editorial 

 Obituary 

 Current Noten 



Scientific Notes ^^"^ 



Withdrawn for publication elsewhere. 



