X 



Vol. XLVII 



No. 2 



THE 



February 1909 



Editors: JOHN M. COULTER and CHARLES R. BARNES 



CONTENTS 



Relation of Soil and Vegetation on Sandy Sea Shores 



Pehr Olsson-Seffer 



Some Aspects of Amitosis in Synchytrium 



Robert F. Griggs 



Vascular Anatomy of the Seedling of Microcycas 



calocoma 



Briefer Articles 



The Nature of Balanced Solutions 



The Extrafascicular Cambium of Ceratozamia 



Current Literat 



ure 



Helen Angela Dorety 



W. J. V. Osterhout 

 Helen A. Dorety 



The University of Chicago Press 



CHICAGO and NEW YORK 

 William Wesley and Son, London 



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