viii 



CONTENTS 



Page 



WoLCOTT, G. N. The Influence of Rainfall and the Non-burning of 



Trash on the Abundance of Diatroia saccharalis 496 



WooDWORTH, C. W. Relative Size in Fumigation 302 



Theory of Toxicity 509 



YoTHERS, W. W. Spraying Scheme for the Control of Insect Pests on 



Citrus Trees in Florida 161 



Cotton Seed Oil Soap as a Substitute for Whale Oil Soap 298 



The Use of Water Under Pressure for the Control of Mealy Bug 304 



