CONTENTS Y 
Page 
Flint, W. P. Suggestions for a New Method of Destroying Chinch- 
bugs 186 
Insect Enemies of the Chinch-bug 415 
Fracker, S. B. Is Crown Gall Injurious to Apple Nursery Stock? 133 
Freeborn, S. B. and Atsatt, R. F. The Effects of Petroleum Oils on 
Mosquito Larvae 299 
Gillette, C. P. and Bragg, L. C. Aphis hakeri and Some Allied Species 328 
Garman, Philip. Notes on the Life-history of Laspeyresia molesta 
Busck 1 57 
Hadley, C. H. Entomological Extension Work in Pennsylvania 1 157 
Hartzell, F. Z. A Method of Graphically Illustrating the Distribu¬ 
tion of Insect Injury 32 
The Influence of Molasses on the Adhesiveness of Arsenate of Lead 62 
Haseman, L. The Missouri Nursery Inspection Service 120 
Hayes, W. P. Studies of the Life History of Two Kansas Scarabaeidae 136 
Head lee, T. J. Mosquito Flight as a Factor in the Problem of Control 1 194 
Headlee, T. J. and Beckwith, C. H. Sprinkling Sewage Filter Fly, 
Psychoda alternata Say. 395 
Howard, C. W. and France, L. V. Fertilization of Queen Bees 265 
Howard, N. F. Poisoned Bait for the Onion Maggot 82 
Insecticide Tests with Diahrotica vittata 75 
Hunter, S. J. Municipal Control of the Spring Canker Worm 164 
Hutchinson, R. H. A Note on the Life Cycle and Fertility of the Body 
Louse, Pediculus corporis 404- 
King, J. L. Notes on the Biology of the Angoumois Grain Moth, 
Sitotroga cerealella Oliv. 87 
Lathrop, F. H. Notes on Three Species of Apple Leaf-hoppers 144 
Littler, F. M. Notes from Tasmania 472 
Lovett, A. L. The Calcium Arsenates 57 
Spreaders for Arsenate Sprays 66 
How Can the Entomologist Assist in Increasing Food Production, 
A Discussion 106 
1 Withdrawn for publication elsewhere. 
