A POPULAR TREATISE 



ON THE 



PHYSIOLOGY OF PLANTS 



FOE THE USE OF GAEDENERS 



OR FOR STUDENTS OF HORTICULTURE AND OF 

 AGRICULTURE 



Dr. PAUL SOEAUER 



DIRECTOR OF THE EXPERIMENTAL STATION AT THE ROYAL FOMOLOSICAL 

 INSTITUTE IN PROSKAU (SILESIA) 



TRANSLATED BY 



P. E. WEISS, B.Sc, F.L.S. 



PROFESSOR OP BOTANY AT THE OWENS COLLEGE, 

 MANCHESTER 



WITH THIRTY-THREE ILLUSTRATIONS 



LONDON 

 LONGMANS, GEEEN, AND CO. 



AND NEW YORK : 15 EAST 16«> STREET 

 1895 



All rights reserved 



