CONTENTS 
V 
PAGE 
Flint, W. P. Poison Baits for Grasshoppers 232 
Gibson, E. H. Professional Entomology: The Call and the Answer 355 
Glenn, P. A. Forms of the Oyster-shell Scale in Illinois 173 
Hadley, C. H. The Green Japanese Beetle Quarantine 198 
Harned, R. W. and Snapp, O. I. Two “Spray Your Orchard Week” 
Campaigns in Mississippi 140 
Haseman, L. The Hessian Fly and Factors Influencing its Relation to 
Wheat Plants 1 322 
Hawley, I. M. Injuries to Beans in the Pod by Hemipterous Insects 415 
0 
Hayes, W. P. The Life Histories of Some Kansas Lachnosterna 303 
Headlee, T. J. Some Experiences with the Codling Moth 166 
Herbert, F. B. Western Twig Pruners 360 
Results of Washing Experiments for Control of the European Elm 
Scale 471 
Herrick, G. W. Field Experiments for the Control of the Apple Maggot 384 
Hinds, W. E. Bean Ladybird 430 
Mexican Bean Beetle Situation 486 
Hollister, W. O. Distribution of Shade Tree Insects in 1919 143 
Hunter, W. D. The Extermination of the Pink Bollworm in Texas 1 44 
Isely, Dwight and Ackerman, A. J. Some Features of the Codling Moth 
Problem in the Ozarks 159 
Kelly, E. G. Outline of Project Work in Extension Entomology 137 
j 
Leiby, R. W. The Corn-stalk Borer, Diatraea zeacolella Dyar 255 
Lindley, P. C. Report of the Southern Nurserymen’s Association 194 
Maxson, A. C. Combating the Sugar Beet Webworm on a Large Scale 468 
McColloch, J. W. A Study of the Oviposition of the Corn Earworm 
with Relation to Certain Phases of the Life Economy and Measures of 
Control 242 
