iv Contents 



No. 4 (April, 1916) 



PAGE 



1. Observations on some Diseases of Plantation Rubber in Malaya. 



By F. T. Brooks, M.A. (With Plates XXXIII-XXXV) . 209 



2. Note on Dr J. Smolak's paper "A Contribution to our Knowledge 



of Silver-leaf Disease" 228 



3. Spraying for Apple Sucker (Psylla mctli). By F. R. Pether- 



bridge, M.A 230 



4. On the Biology and Economic Significance of Tipula paludosa. 



Part I. Mating and Oviposition. By John Rennie, D.Sc, 

 F.R.S.E. (With Plate XXXVI) 235 



5. Some East African Insects of Economic Importance. By 



R. H. Deakin, M.Sc 241 



6. Winter Cover Washes (conclusion). By A. H. Lees, M.A. . 245 



7. Some Observations on the Egg of Psylla inali By A. H. Lees, 



M.A. (With 8 Text-figures) 251 



8. Sciara tritici, Coq. A Fly Injurious to Seedlings. By F. W. 



Edwards, B.A., F.E.S., and C. B. Williams, M.A.. F.E.S. 258 



9. On a Case of Recovery from Mosaic Disease of Tomato. By 



W. B. Brierley 2(53 



10. "Wilt" or "Crown-rot" Disease of Carnations caused by 



Fusarium sp. By Paul A. van der Bijl, M.A., F.L.S. 

 (With Plates XXXVII-XL) 267 



11. Review. The Embryology of the Honey-Bee. By Dr .1. A. 



Nelson ... 292 



