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COiNTENTS. 



PAGB 



Mites infesting Cinohona and Tea in Java .... '. . .. 41 

 Unsuccessful Experiments in Trapping Noctuid Lai-vao in the 



Dutch East Indies . . . . .... , . . . , . 41 



Experiments against Ohrysomphalus dictyospermi in Sicily . . . 42 



The Life-History of PemphigiiiS populi-transversua^ in U.S.A. . . 42 



Geratitis capitata and its Parasites in Hawaii in 1917 . . . . 43 



Notes' on the White-marked Tussock Moth in Canada- . . ' . . 43 



Insect Pests in India in 1917-18. ... .. - .. .. .. 43 



The Relations between.Ants and Aphids in Canada. . . . . . 44 



Pests of Shade Trees in Canada . . .. . . . . . . -44 



Notes on the Common Aphids of North America . . . . . . 45 



Notes on Sparganothis pilleri'ana in French Vineyards . . . . 4.5 



Dusting with Lime against Vine Moths in France . . . . . . 46 



Experiments against 0Zi/stc5 a»n.&igfweK<i in Switzerland .. .. 46 



Wheat Pests and their Control in Indiana .... . . . . 46 



Precglutions against San Jos^ Scale in Kansas . . . . . . 47 



Insect Pests intercepted in Kansas ..■*.. . . . . . . 48 



Xylotreohus quadripeslLntesting Coffee in Ceylon . . . . . . 48 



Notes on the Preparation of Insecticides . . .... . . 48 



The CuTjant Borer, Aegeria tipnUformis, and its Control in 



Tasmania • . . . . . . . . . -. .... . . 48 



Syrphid Flies of Economic Importance in New Zealand .. .. 49- 



Citrus Pests in New Zealand . . . . ' . . . • ..." • • 4(^ 



The Prospects oT cultivating AracMs hypogaea in Aiistralia . . 50 



Xylotrechus quadripes and other Pests of Coffee in Tonkin . . . . 50 



Insects Pests of Green Manure Crops and Shade Trees in Assam . . 54 



Experiments' on the Valu^ of Spraying Tea in India '. . . . 65 



An Experiment on the Treatment of Red^Spider by Insecticides in 



Ind'a . . • • 66 



Insocts'Pesti in Jamaica in 1917-18 .. .. .. •• •• ^^ 



New Flea-beetles from Maine . . ... • . • • • • ; • 63 



The Grape JMealy- Bug (Pseudococeus balcerl) .and its Control in 



California • .. -. ,•• •• ^J 



The Valuaole Results of Quarantine Measures in California .. 59 



