elvi Journal of the Asiatic Society of Bengal. [NS., XIV, 
Section of Botany. 
President—R. S. Horn, Esq., F.C.H., F.LS., PLS. 
Forest Botanist, Dehra Dun. 
Presidential Address. 
PLant OECOLOGY AND ITS BEARING ON PROBLEMS OF 
Economic IMPORTANCE IN INDIA 
(With Plates V—X.) 
1. Plant oecology is the study of the relationship exit 
: ing between the plant and the various — 
Objects of Oecology. fc ors which constitute its habitat. Om | 
of the most important objects of this study, therefore, B 
discover by experiment and observation the effect 0 ; 
factors on the life-history and development of the plant 7 
rom a scientific point of view this study is essential for ® 
correct understanding of the causes responsible for the ysis | 
nomy of species and types of vegetation and for theit oa _ 
int of viel 
the 
conditions necessary for the healthy development theit 
iseases. I propose to indicate briefly in the presen’. 
po 
some of the directions in which this work has recently 
or appears likely to yield in the immediate future, 
iat Mn gre 
me (8) cro 2 * x by 
sustain pping this grass, with the obj 
