Vol. II, No. 2 



September, 192 1 



JOURNAL OF GENETICS 



EDITED BY 



W. BATESON, M.A., F.R.S. 



DIRECTOR. OF THE JOHN INNES HORTICULTURAL INSTITUTION 

 AND 



R. C. PUNNETT, MA., F.R.S. 



ARTHUR BALFOUR PROFESSOR OF GENETICS IN THE UNIVERSITY OF CAMBRIDGE 



CAMBRIDGE UNIVERSITY PRESS 



C. F. CLAY, Manager 

 LONDON : FETTER LANE, EC. + 

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Issued d October^ 1 921] 



