I CONTENTS 



Parrott, p. J. Control of Sucking Insects by Dusting 82 



Peterson, Alvah Further Observations on the Use of Paradichlorobenzene 

 for the Control of the Peach Tree Borer^ 200 



Pettit, Morley Essentials of Apiary Practice and Management 121 



Phillips, E. F. The Ability of Queen and Drone Honeybees to Feed 

 Themselves 430 



The Effect of Activity on the Length of Life of Honey Bees 368 



PiRSCH, G. B. Studies of the Temperature of Individual Insects, with 

 Special Reference to the Honey Bee^ 134 



Quayle, H. J. Dusting versus Spraying for the Codling Moth in Walnuts 371 



Resistance of Certain Scale Insects in Certain Localities to Hydrocyanic 

 Acid Fumigation 400 



Richardson, C. H., and Richardson, E. H. Is the House-fly in its Nat- 

 ural Environment Attracted to Carbon Dioxide 425 



Rudolfs, W. Nicotine Delivery from Dust Carriers 421 



Ruggles, a. G. Horticultural Inspection Section, Address of Chairman 146 



Sanders, G. E. Cheaper Arsenicals and Their Use 71 



Sasscer, E. R. Important Insects Collected on Imported Nursery Stock 

 in 1921 158 



Sasscer, E. R., and Weigel, C. A. Fumigation with Hydi-ocyamc-acid 

 gas in Greenhouses on a Commercial Basis 200 



ScHWiNG, E. A., and Hartung, W. J. Utilization of Systematic Observa- 

 tions on Beet Leafhopper, Eutettex tenella Baker, and Curly Leaf of Sugar 

 Beets 365 



Severin, H. H. p., and Basinger, A. J. Facts Concerning Migration of 

 Beet Leafhopper, Eutettex tenella Baker, in Sacramento Valley of Cali- 

 fornia 404 



Facts Concerning Natural Breeding Area of Beet Leafhopper, Eutettex 

 tenella Baker, in San Joaquin Valley of California 411 



Sladen, F. W. L. Memorial Resolution 146 



Smith, L. B. Larval Food Habits of the Japanese Beetle, Popillia jap- 

 onica 307 



Strickland, E. H. Poisoned Molasses for the Destruction of Noctuid 

 Moths 214 



Treherne, R. C. The Onion Maggot in British Columbia under Irrigated 

 Conditions^ 240 



Wadley, F. M. Control of Strawberry Leaf Roller in the Mississippi 

 Valley 356 



'Withdrawn for publication elsewhere. 



