CONTENTS 
Proceedings of the Fifth Annual Meeting of the Pacific > Slope Branch of the 
American Association of Economic Entomologists 
Business Session 
Papers and Discussions 
Winterkilling of Codling Moth Larvae 
Winterkilling of the San Jose Scale 
Petroleum Insecticides 
Presidential Letter 
Commercial Entomology and the Service it Can Render to Organized 
Agriculture W. D. Pierce 
An Index Number for Rating Codling Moth Treatments 
A. L. Melander 
Symbiosis of Blastophaga and the Fig Family G. P. Rixford 
Insects of Economic Importance in the Cape Region of Lower California, 
Mexico G. F. Ferris 
The Fitness of the Waters of the Santa Clara Valley for the Making of 
Spray Solutions E. R. DeOng 1 
Combating the Sugar Beet Web worm on a Large Scale A. C. Maxson 
Results of Washing Experiments for Control of the European Elm Scale 
F. B. Herbert 
The Spread of the Argentine Ant in Southern California 
R. S. Woglum and A. D. Borden 
Migratory Instincts of the Blue Bottle Maggots, Phormia regina 1 
A . C. Burrill and H . L. Jones 
Daylight Orchard Fumigation R. S. Woglum and M. B. Rounds 
Mexican Bean Beetle Situation W. E. Hinds 
A Study of the Effect of Cotton Worm on Boll Development and Cotton Yield 
F. L. Thomas 
Scientific Notes 
Editorial 
Reviews 
Current Notes 
1 Withdrawn for publication elsewhere. 
E. J. Newcomer 
Anthony Spuler 
R. K. Vickery 
Wilmon Newell 
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