538 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



12. Elm tree-borer. 



A. G. Rugglcs, Minn. Agr. Exp. Sta., St. Anthony Park, Minn. 



13. (S) Polydrosus itnpressifrom; life history and distribution of this newly imported 

 species. 



W. J. Schoene, X. Y. Agr. Exp. Sta., Geneva, N. Y. . 



14. (S) Fruit-tree bark-beetles (Phleotribus liminaris and Scolytus rugulosus). 

 Observations and experiments in control. 



Assistants of H. A. Gossard, Ohio Agr. Exp. Sta., Wooster, Ohio. 



15. (A) Rice weevil {Calandra oryza); life history, economic relationship, injury 

 and control. 



W. E. Hinds and assistants, Ala. Agr. Exp. Sta., Auburn, Ala. • 



16. Corn bill-bug (Sphenophorns venatus). 



C. S. Spooner, Minn. Agr. Exp. Sta., St. Anthony Park, Minn. 



17. (A) Sphenophorus callosus and other injurious species of Sphenophorus in North 

 Carolina. A complete biological study of the species injurious to com in North 

 Carolina and determination of methods of control. 



R. I. Smith, N. C. Agr. Exp. Sta., West Raleigh, N. C. 



18. (S) Plum curculio; study of life historj" and orchard tests of sprays. (In co- 

 operation wdth Horticultural Dept. and fruit growers.) 



T. J. Headlee, L. M. Peairs, and Rees Hilhs, Kas. Agr. Exp. Sta., Manhattan, 

 Kas. 



19. Plum Curculio; life history study and methods of sprajdng. 

 A. G. Ruggles, Minn. Agr. Exp. Sta., St. Anthony Park, Mirm. 



20. Plum Curculio; life history studies and control measures. 



C. Gordon Hewitt, Div. Entomology, Can. Dept. Agr., Ottawa, Canada. 



Diptera 



21. (A) Nematocera. A study of the early stages of some Nematocerous diptera 

 with special reference to economic species; ecology, morphology, and taxonomy. 



O. A. Johan^isen, Me. Agr. Exp. Sta., Orono, Me. 



22. (H) Control of black-flies, deer-flies, and midges. Experiments in the control 

 of these and similar pests in the mountainous resort region of New Hampshire with 

 incidental life hi.story .studies. 



W. C. O'Kane, N. H. Agr. Exp. Sta., Durham, N. H. 



23. The sand fly and pellagra; to determine what part, if any, the sand fly has in 

 the transmission of this disease. (Cooperation with State Board of Health.) 



S. J. Hunter, and W. T. Emery, Univ. of Kas., Lawrence, Kas. 



24. (S)' Grape midge; life history, habits and means of control. 

 F. Z. Hartzell, N. Y. Agr. Exp. Sta., Geneva, N. Y. 



25. (S) Gall midges; a monograpliic study of biology and taxonomy. 

 E. P. Felt, State Entomologist, Albany, N. Y. 



26. (S) Hessian fly; field observations on abundance and measures of control. 

 H. A. Gossard and assistants, Ohio Agr. Exp. Sta., Wooster, Ohio. 



27. (S) Hessian fly; life history, habits and means of control. (In cooperation 

 with U. S. Bureau of Entomology.) 



P. J. Parrott, N. Y. Agr. Exp. Sta., Geneva, N. Y. 



28. (S) Narcissus fly (Melodron equestris); life historj' and control measures. 

 C. Gordon Hewitt, Div. Entomology, Can. Dept. Agr., Ottawa, Can. 



29. (S) House-flies; a study of parasites, range of flight and general economic 

 relations. 



C. Gordon Hewitt, Div. Entomology, Can. Dept. Agr., Ottawa, Can. 



