Vol. IX, No. I 



APRIL, 1922 



THE ANNALS OF 

 APPLIED BIOLOGY 



EDITED FOR THE ASSOCIATION OF ECONOMIC BIOLOGISTS 



BY 



W. B. BRIERLEY 



AND 



D. WARD CUTLER 



PUBLICATIONS COMMITTEE 



V. H. BLACKMAN A. D. IMMS 



A. W.HILL R.T.LEIPER 



G. A. K. MARSHALL 



CAMBRIDGE UNIVERSITY PRESS 



C. F. CLAY, Manager 



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also 



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WHELDON & WESLEY, LTD., 28, ESSEX STREET, LONDON, W.C. 2 



PARIS: LIBRAIRIE HACHETTE & CIE. 



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