August, '10] CURRENT NOTES 387 



tie gain with three applications over that obtained with one thorough treat- 

 ment. This was true also in the case of the coarse spray at a high pressure. 

 The average eflBciency of one application, be it coarse or fine, at high or low 

 pressure, should be carefully determined for the eastern United States, since 

 it is a matter of great practical importance to our fruit growers, especially 

 if there is liability of injury when large amounts of arsenic are applied to 

 orchard trees. 



The Apple Leaf Hopper, Empoasca mali LeB., by E. L. Webster, 

 Iowa Agric. Expt. Sta. Bui. Ill : 1-32. 



This is an extended, well illustrated account. The author states that the 

 most serious injury occurs on young apple trees in the nursery row. The 

 characteristic work of this insect is described, followed by a detailed discus- 

 sion of control measures, the author favoring spraying and dipping. The 

 more technical matter, such as the synonomy, a detailed account of the life 

 history, follows and is made more complete by an extended bibliography. 

 The arrangement of this bulletin should appeal to the practical fruit grower 

 and be of equal service to the economic entomologist. 



Current Notes 



Conducted by the Associate Editor 



The following appointments to the Division of Entomology of the De- 

 partment of Agriculture of Canada have been made: 



Mr. R. C. Treherne, who has been temporarily engaged on the staff of the 

 Division of Entomology as inspector of imported nursery stock for the brown- 

 tail moth and who worked for some time with Mr. Wilmon Newell at Baton 

 Rouge, La., and also Mr. G. E. Sanders, formerly assistant in entomology 

 with Prof. S. A. Forbes, Urbaua, 111., have b^en appointed for field and in- 

 spection work. Communications should be addressed to them at the Division 

 of Entomologj-, Central Experimental Farm, Ottawa, Canada. 



Dr. C. Gordon Hewitt, dominion entomologist of Canada, Ottawa, made a 

 trip to the States during June and visited the entomological departments of 

 the agricultural experiment stations at Geneva, N. Y., Cornell University, 

 Ithaca, N. Y., New Haven, Conn., Kingston, R. I., Durham, N. H., Orono, Me., 

 the state entomologists at Albany, N. Y., and Augusta, Me., and the entomo- 

 logical department of Bussey Institution, Harvard University, Forest Hills, 

 Mass. He also inquired into the work of suppressing the gypsy and brown- 

 tail moths in Connecticut, Rhode Island, Massachusetts, New Hampshire and 

 Maine and spent a week in Boston inspecting the parasitic and field work that 

 is being carried on by the United States Bureau of Entomology and the state 

 of Massachusetts. 



According to Science, Mr. Robert Newstead, lecturer in economic ento- 

 mology and parasitology at the Liverpool School of Tropical Medicine, has 

 gone to Malta to investigate the menace to health by the sandfly. 



