SOIL CONDITIONS 



AND 



PLANT GROWTH 



i2.1l) 



EDWARD J.^ RUSSELL, D.Sc. (Lond.), F.R.S. 



DIRECTOR OF THE ROTHAMSTED EXPERIMENTAL STATION, HARPENDEN 



WITH ILLUSTRATIONS 



FOURTH EDITION 



LONGMANS, GREEN AND CO. 

 39 PATERNOSTER ROW, LONDON 



FOURTH AVENUE & 30th STREET, NEW YORK 



BOMBAY, CALCUTTA, AND MADRAS 



I92I 



