Vol. VII, Nos. 2 and 3 December, 1920 



THE ANNALS OF 

 APPLIED BIOLOGY 



THE OFFICIAL ORGAN OF THE ASSOCIATION 

 OF ECONOMIC BIOLOGISTS 



EDITED BY 



E. E. GREEN, Way's End, Camberley (late Government Entomologist, Ceylon) 



WITH THE ASSISTANCE OF THE COUNCIL 



CAMBRIDGE UNIVERSITY PRESS 



C. F. CLAY, Manager 



LONDON : FETTER LANE, E.C. 4 



also 



H. K. LEWIS & CO., LTD., I 3 6, GOWER STREET, LONDON, W.C. I 



WILLIAM WESLEY & SON, 28, ESSEX STREET, LONDON, W.C. 2 



PARIS : LIBRAIRIE HACHETTE & CIE. 



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TOKYO : THK MARUZEN-KABUSH1KI-KAISHA 



Price Twenty Shillings net 



