THE 



PRINCIPLES 



OP 



PLANT-TEEATOLOGY 



WILSON CKOSFIELD WORSDELL, F.L.S. 



HONORAET MEMBER OF THE EOTAL HOKTICULTTJKAL SOCIETT 



VOLUME II 



LONDON 

 PRINTED FOR THE RAY SOCIETY 



AND SOLD ET 



DULAU & CO., LTD., 37, SOHO SQUARE, W. 

 1916 



