CONTENTS vii 
PAGE 
Sasscer, E. R. Important Foreign Insect Pests Collected on Imported 
Nursery Stock in 1919 181 
Satterthwait, A. F. Notes on the Habits of Calendra pertinax Oliv, 280 
Scholl, E. E. Method of Procedure in Pink Bollworm Eradication 
Work in Texas 38 
Sherman, F. The Green Clover Worm, Plathypena scabra Fabr., as a 
Pest of Soy Beans 295 
Smith, H. E. Broom Corn, the Probable Host in which Pyrausta nubilalis 
Hubn. Reached America 425 
Spooner, C. S. An Interesting Case of Milk Contamination 368 
Spuler, Anthony. Winterkilling of the San Jose Scale 443 
Stearns, L. A. Some Results with Nicotine and Nicotine Combinations 
in Experiments on the Control of Laspeyresia molesta Busck. 364 
Thomas, F. L. A Study of the Effect of Cotton Worm on Boll Develop¬ 
ment and Cotton Yield 489 
Vickery, R. K. Petroleum Insecticides 444 
Wadley, F. M. The Squash Bug 416 
Weigel, C. A. and Chambers, E. L. The Strawberry Root-worm Injur¬ 
ing Roses in Greenhouses 226 
Wellhouse, W. H. Wild Hawthorns as Hosts of Apple, Pear and Quince 
Pests 388 
Woglum, R. S. and Rounds, M. B. Daylight Orchard Fumigation 476 
Woglum, R. S. and Borden, A. D. The Spread of the Argentine Ant in 
Southern California 1 475 
Zetek, James. The Control of Breeding of Yellow Fever Mosquitoes in 
Ant Guards, Flower Vases and Similar Containers 344 
1 Withdrawn for publication elsewhere. 
