vi CONTENTS 



Page 



F. H. MosHER and R. T. Webber. The Relation of Variation in the 

 Number of Larval Stages to Sex Development in the Gipsy 



Moth 368 



WiLMON Newell. A Simple and Economical Method of Fihng Ento- 

 mological Correspondence 87 



The Essentials of a Good Apiary Inspection Law 92 



A Natural Enemy of the Argentine Ant 147 



W. C. O'Kane. Further Experience with an Insectary 181 



W. A. Orton. Plant Quarantine Problems 109 



Herbert Osborn. Economic Notes on Leaf Hoppers in Maine* 192 



F. B. Paddock. Observations on the Bee-moth 183 



J. R. Parker. The Life History of the Sugar-beet Root-louse, Pem- 



phigus betcB 136 



T. H. Parks. Effect of Temperature upon the Oviposition of the 



Alfalfa Weevil, Phytcmomus posticus Gyll. 417 



P. J. Parrott. The Growth and Organization of Apphed Entomology 



in the United States 50 



L. M. Peairs. The Relation of Temperature to Insect Develop- 

 ment 174 



D. M. Rogers. The Gipsy and Brown-tail Moth Quarantine 116 

 S. A. RoHWER. Description of a New Sawfly Injurious to Strawberries 479 



E. W. Rust. Notes on Coccidse Found in Peru 467 



J. G. Sanders. Uniform State Inspection Laws 102 



E. R. Sasscer. Notes on Entomological Inspection in the District 



of Columbia 240 



W. M. Scott. The California Pear Thrips in Maryland 478 



V. E. Shelford. The Importance of the Measure of Evaporation in 



Economic Studies of Insects 229 



The Use of Atmometers to Measure Evaporation in the Study 



of Insects 249 



Perley Spaulding. Inspection for Plant Diseases 106 



O. H. Swezey. The Introduction of a Tachinid Parasite of the Sugar 



Cane Weevil Borer in Hawaii 455 



H. V. Tartar. On the Valuation of Lime-sulfur as an Insecticide 463 



D. G. Tower. Notes on the Life History of Prospaltella pernkiosi 



Tower 422 



♦Withdrawn for publication elsewhere. 



