American Association of Economic Entomologists, Proceedings of the Thirty-sixth Annual 
Meeting (Continued) 
Statistical Methods in Entomology J< A. Hyslop 177 
Methods of Estimating Abundance and Damage Caused by the Gipsy Moth A. F. Burgess 180 
The Use of Biometrical Methods in the Interpretation of Codling Moth Experiments 
F. Z . Hartzell 183 
Estimating the Abundance and Damage by the San Jose Scale J. J. Davis 192 
Methods of Estimating Boll Weevil Losses W. D. Hunter 195 
Estimating the Abundance of, and Damage Done by Grasshoppers Stewart Lockwood 197 
The Application of Statistical Methods to the Determination of Abundance of and Damage 
by Hessian Fly W. H. Larrinter 202 
Recent Developments in Greenhouse Fumigation with Hydrocyanic-acid Gas '■/ '/■ 
E. R. Sasscer and C. A. Weigel 214 
The Use of Lubricating Oil Emulsions on Greenhouse Scale Insects C. C. Compton 222 
Control of Root-Knot Nematodes on Florida Truck Farms J. R. Watson 225 
The Use of Calcium Cyanide for the Control of Fleas and Other Insects K. C. Sullivan 230 
The Price of Insecticides V. I. Safro 238 
Some Recent Developments in the Use of Paradichlorobenzene S. C. Chandler 246 
Three Years of Paradichlorobenzene Experiments in the South 0. I. Snapp 253 
Oriental Fruit Moth in Pennsylvania in 1923 T. L. Guyton 259 
A New Apple Pest, Metachroma interruptum W. P. Flint 260 
Dusting for Leaf-hoppers, Empoa rosae L., in Bearing Apple Orchards 
5. W. Frost and E. M. Craighead 262 
hi \, * 
Should the Midsummer Apple Spray be Timed for the Second Brood only of Codling Worm? 
H.A.Gossard 265 
Some Side Lights on Spray Injuries to Apple Fruits and Foliage P. J. Parrott 267 
Spreader Tests on Apples and Peaches: A Second Report L. A. Stearns and W. S. Hough 274 
; • , s ' • ’ . ' 
The Estimation of Dosage for Volatile Dusts: An Illustration of the Value of Correlation of 
Mathematics to Entomology F. Z. Hartzell 279 
Comparative Tests with Dormant Sprays for San Jose Scale Control J. J. Davis 285 
Further Stuaies of Prune Root Borer Control in Oregon F. H. Lathrop and Victor Trask 290 
The Houghton Gooseberry Aphis, Myzus houghtonensis, as a Pest in Ohio 
D. M. DeLong and A. A. Mathewson 295 
Certain Dusts as Agents for the Protection of Stored Seeds from Insect Infestation 
- T. J. Headlee 298 
Notes on the Use of Chlorine Gas as an Insecticide T. L. Guyton 307 
An Asiatic Beetle, Anomala orientalis, in Connecticut W. E. Britton 309- 
Grasshopper Baits, with Special Reference to Sodium Arsenite C. L. Corkins 311 
Caenurgia erechtea Cram, as an Alfalfa Pest in Kansas R. C. Smith 312 
The Time of Planting Corn as a Factor in Corn-ear Worm Control J. W. McColloch 320 
Controlling Chinch Bugs in Missouri with Calcium Cyanide 
L. Haseman and S. W. Bromley 324 
New Development in Alfalfa Weevil Activity and Control C. Wakeland 330 
Observations on an Outbreak of Utetheisa bella L. M. T. Smulyan and R. T. Webber 337 
The Effectiveness of Calcium Cyanide in the Extermination of the Black Tail Prairie Dog, 
Cynomys ludovicianus Otis Wade 339 
' • Scientific Notes ; ,V- 343 
Editorial 346 
Current Notes 347 
Notes on Horticultural Inspection 355 
Apicultural Notes • ■ ( 356 
Pacific Slope Notes 356 
Pacific Slope Notes 359 
Notes on Medical Entomology 359 
