CONTENTS— eonfc 



PAGE. 



The Organisation of Demonstrations in the Control of Injurious 



Insects 204 



The Influence of Atmospheric Humidity on Insect Metabolism . . 205 



The Seventeen-year Locust in Western New York 206 



A Chemical Feeding Analysis of Lachnosterna and its economic 



Application . . . . . . . . . . . . . • . • 206 



The Relation between Aphids and Fire Blight in U.S.A. . . . . 206 



An Outbreak of Alypia octomaculata on vines in Connecticut . . 207 



Notes on Aegeria exitiosa in U.S.A. . . . . . , . . . . 207 



" Side Injury " and Codling Moth Control in U.S.A. . . . . 207 



The Control of Saperda Candida in U.S.A 208 



The Use of Lime against Pea Weevils in U.S.A. . . . . . . 208 



Screening as a Protection against Insects . . . . . . . . 208 



Insect Behaviour as a Factor in Apphed Entomology . . . . 208 



Silpha bUuberosa, a Pest of Beet in U.S.A. . . . . . . . . 210 



Experiments with Light Traps and Baits against Crambid Moths in 



U.S.A 211 



Measiires against the Alfalfa Weevil in U.S.A. . . . . . . 211 



Experiments with Tree Banding Materials in U.S.A. . . . . 212 



The Control of Grasshoppers in U.S.A. . . . . . . . . 213 



Investigations on Isosoma spp., on Cereals in U.S.A. . . . . 213 



Experimental Wheat Sowing to escape the Hessian Fly in U.S.A. . . 214 



Wind as a Factor in the Dispersion of the Hessian Fly in U.S.A. . . 214 



Wind Dispersion of the Gipsy Moth in U.S.A. . . . . . . 215 



Methods of Breeding and Colonising Gipsy Moth Parasites in U.S.A. 215 



A Method of Studying Underground Insects . . . . . . 216 



Notes on the Oviposition of Diprion simile in U.S.A. . . . . 217 



Bruchus obtectus in U.S.A. . . . . . . . . . . . . 217 



Measures against Lymantria dispar in Connecticut . . . . ^ . . 217 



Methods for the Control of European Foulbrood in U.S.A. . . ' .. 218 



The System of Inspection of Imported Plants in U.S.A. . . . . 218 



Foreign Insect Pests on Imported Plants in U.S.A. in 1916 . . 219 



The Presence of Aphid Eggs as far South as Texas . . . . . . 220 



New insect Pests in New Jersey , . . . . . . . . . 220 



The Clover Weevil in Iowa 220 



Measures against the Introduction of the Pink Boll Worm into 



U.S.A 220 



The Control of the Sale of Insecticides in U.S.A 220 



Stephanitis pyrioides infesting Azaleas in New Jersey . . . . 221 



Spraying Experiments in Nova Scotia in 1916 . . . . . . 221 



Notes on Rearing Insects for Experimental Purposes . . . . 221 



Experiments with Miscible Oils against Cacoecia argyrospila in U.S.A. 222 



Sprays for Apple Pests in U.S.A. . . . . . . . . . . 222 



Orchard Pests and their Control in Oregon . . . . . . . . 222 



The Effects of Insecticides on Trees . . . . . . . . . . 223 



The Protection of Fruit Trees from Weevils in U.S.A. . . . . 223 



Peranabrus scahricollis and its Control in U.S.A. . . . . . . 224 



The Use of Lime-sulphur and Crude Oil Emulsions in U.S.A. . . 225 



Scale Insects on Bananas and their Control in Fiji . . . . . . 226 



Cacao Pests in Fiji . . . . . . , . . . . . . . 226 



Pests of Stored Maize in Fiji 226 



Pests of Limes in Fiji . . . . . . . . . . . . . . 226 



Insect Pests in Porto Rico . . . . . . . . . . . . 227 



The Habits of Aphids in Colorado . . . . . , . . . . 227 



Typha latifolia, as a Summer Host of Injurious Insects in California 229 



Pests intercepted in Quarantine in Calilomia . . . . . . 229 



Sprays for Apple Orchards in Nova Scotia . . . . . . . . 230 



A new Delphacid from Formosa . . . . . . . . . , 230 



Two New Pests of Rye in Silesia . . . . , . . . . . 231 



The Control of injurious Insects by Fungi and Bacteria . . . . 231 



Insect Pests and their Control in Holland . . . . . . . . 231 



The Destruction of Mole-crickets in Brazil . . . . . . . . 231 



Apparatus for destroying Nests of Atta sexdens in Brazil . . . . 231 



Dorcacerus barbatus attacking oranges in Brazil . . . . . . 232 



Pests of Oranges in Brazil . . . . , . . . 232 



Legislation against Xyleborua fornicatus in Ceylon . . . . . . 232 



