The Association of Economic Biologists 



President 



Professor J. B. FARMER, D.Sc, F.R.S. 



Vice-Presidents 



Professor CARPENTER, M.R.I.A. 

 Professor STANLEY GARDINER, F.R.S. 

 Professor HTCKSON, F.R.S. 

 R. STEWART MacDOUGALL, D.So. 

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



Hon. Treasurer Hon. Sec. for Publications 



J. C. F. FRYER, Esq., E. E. GREEN, Esq., 



The Pathological Laboratory, Way's End, 



Royal Gardens, Caraberley. 



Kew. 



Hon. Secretary 



S. A. NEAVE, D.Sc, 



89, Queen's Gate, S.W. 7 



Council 



Lt.-Col. ALCOCK, LM.S., F.R.S. A. D. IMMS, D.Sc 



Prof. B. T. P. BARKER R. T. LEIPER, D.Sc 



S. E. CHANDLER, D.Sc G. A. K. MARSHALL, D.Sc 



F. J. CHITTENDEN A. G. L. ROGERS 



A. D. COTTON Prof. W. SOMERVILLE 



CONTENTS OF Vol. V, Nos. 3 & 4 



FAGB 



1. Physiological Pre-determinatiou : the Influence of the Physiological 



Condition of the Seed upon the Course of Subsequent Growth and 

 upon the Yield : III. iReview of Literature. Chapter II. By 

 F. KiDD, M.A. (Cantab.), D.Sc. (Lond.), and C. West, A.R.C.Sc, 

 D.Sc. (Lond.) 157 



2. The Structure, Bionomics and Forest Importance of Cryphalus ahietis 



Ratz. By W. Ritchie, B.Sc, B.Sc. (Agr.) (With 15 Text-figures) 171 



3. A Copper Emulsion as a Fungicide. By H. Wormald and L. K. 



WORMALD. (With Plate XI) 200 



4. Studies in Bacteriosis. II. A Brown Blotch Disease of Cultivated 



Mushrooms. By S. G. Paine. (With 5 Text-figures) . . .206 



5. Physiological Pre-determination : the Influence of the Physiological 



Condition of the Seed upon the Course of Subsequent Growth and 

 upon the Yield : IV. Review of Literature. Chapter III. By 

 F. KiDD, M.A. (Cantab.), D.Sc. (Lond.) and C. West, A.R.C.Sc, 

 D.Sc. (Lond.) (With 3 Text-figures) 220 



G. On forms of the Hop {Humulus lupulus L.) resistant to Mildew 



(SphaerotJieca fnnnuli (DC.) Burr.) ; III. By E. S. Salmon . 252 



7. A Li.st of Coccidae affecting various Genera of Plants. By E. E. Green, 



F.E.S., F.Z.S 261 



S. The use of Scientific and Popular Names in Econoraic Biology. By 



S. A. Neave, M.A, D.Sc. (Oxon.) 274 



II. Laws of the Association of Economic Biologists ..... 276 

 10, List of Members of the Association of Economic Biologists . 278 



