February, '11] headlee: entomological investigations 45 



General Subjects (Continued) 

 Name of Project Investigator Address 



82 Insects of Forest and Shade Trees H. A. Gossard, .... Wooster, Ohio. 



83 Grape Insects, Especially Root Worm, 



Rose Chafer, and Leaf Hopper. (A 

 complete study of life history, habits 

 and methods of control.) F, Z. Hartzell "Geneva, N. Y, 



84 Insects that Affect Health A. L. Melander Pullman, Wash. 



85 Biological Survey of Insect Life of 



Kansas S. J. Hunter and 



F. X. Williams. . Lawrence, Kan. 



86 A Study of the Actual Value of Insect 



Parasitism H. T. Fernald Amherst, Mass. 



87 A Physiological Study of the Internal 



Changes Induced by Endo-parasites . . A. L. Melander Pullman, Wash. 



88 Environmental Study of Hessian Fly and 



the Plant Lice Injurious to Wheat. (A 

 study of the effect of various elements 

 of the environment on the life economy 

 of these creatures.) T. J. Headlee Manhattan, Kan. 



89 Some Spraying Experiments on Apples 



and Peaches in Foliage with Various 

 Lime and Sulphur Mixtures to find out 

 Their Effects as Summer Sprays Upon 

 the Various Insects and Fungi Preva- 

 lent in Connecticut. (Cooperation 

 with the botanist.) W. E. Britton New Haven, Conn. 



Incidental to Insect Control 



90 Investigation of the Factors Governing 



the Production, Diffusion, and Insecti- 

 cidal Efficiency of Hydrocyanic Acid 

 Gas and Carbon Bisulphide Vapor as 

 used in Economic Entomology W. E. Hinds Auburn, Ala. 



91 Spraj'ing Materials and Combinations . . H. A. Gossard Wooster, Ohio. 



92 Different Makes of Spraj-ing Machinery H. A. Gossard Wooster, Ohio. 



93 Dipping Nursery Stock. (A study of the 



effect of different insecticidal dips used 

 on both roots and top in fall and 

 spring.) T. B. Symons College Park, Md. 



94 The Relation of Insecticides to the Burn- 



ing of Fohage H. T. Fernald Amherst, Mass. 



95 The Limits of Toxicity of Lime-sulphur A. L. Melander Pullman, Wash. 



96 Toxicity of the Salts of Arsenic and Lead . A. L. Melander .... Pullman, W^ash. 



97 Investigation of the Substances used for 



Insecticidal, Vermicidal, and Fungi- 

 cidal Purposes, — Their Action, Rela- 

 tive Value, and Practical Application . . Fred. B. Lowe Detroit, Mich. 



Higher Animals 



98 The Food Habits of Birds to Determine 



the Economic Value of Washington 



Birds A. L. Melander. . . . Pullman, Wash. 



