The Association of Economic Biologists 



President 



Professor NEWSTEAD, F.R.S. 



Vice-Presidents 



Professor CARPENTER, M.R.I.A. 



Professor HICKSON, F.R.S. 



R. STEWART MacDOUGALL, D.Sc. 



Sir PATRICK MANSON, K.C.M.G., F.R.S. 



A. E. SHIPLEY, D.Sc, F.R.S. 



Council 



R. S. BAGNALL Prof. P. GROOM, D.Sc. 



S. E. CHANDLER, D.Sc. A. D, IMMS, D.Sc. 



F. J. CHITTENDEN Prof. J. H. PRIESTLEY 



E. E. GREEN A. G. L. ROGERS 



Hon. Treasurer 



J. C. F. FRYER, Esq., 



Craven House, 



Northumberland Avenue 



Hon. Secretary 



Professor H. M. LEFROY, 



Imperial College of Science, 

 South Kensington 



CONTENTS OF Vol. II, No. 1 



PAOB 



1. A Bacterial Disease of the Mango. Bacillus mangiferae n.sp. By 



Ethel M. Doidge, M.A., F.L.S. (With Plates I— XIV and 3 Text- 

 figures.) 1 



2. Two Scoliid Parasites on Scarabaeid Larvae in Barbados. By W. 



Nowell, A.R.C.S. (With Plate XV and 1 Text-figure.) . . 46 



3. Pink Disease of Plantation Rubber. By F. T. Brooks, M.A. and 



A. Sharples, A.R.C.S. (With Plates XVI and XVII and 11 Text- 

 figures.) 58 



4. An Attempt to Measure the Local and Seasonal Abundance of the 



Swede Midge in Parts of Yorkshire over the Years 1912 to 1914. 

 By F. W. Dry, M.Sc. (With Plate XVIII, 2 Text-figures, and 

 5 Charts.) 81 



5. The Occurrence of Fungi on Aleurodes vaporariorum in Britain. By 



A. S. Horne 109 



