cut off the wind in certain directions tut permitted full swing in 

 another. Thus local topography seems to he more responsihle for the 

 direction of distribution of white pine seed than the prevailing winds. 



COUCLUSIOHS. 

 The conclusions of this study may he summarized as follows :- 



1. The periodicity of seed years may he explained to some 

 ex tent hy the variation of availahle soil water from year to year. 



2. Different species, having different moisture requirements, are 

 influenced in different ways hy these variations, thus accounting for the 

 fact that all species do not seed the same years. 



3. beed is distributed in all directions from the tree if local 

 conditions do not interfere. 



4. The direction of seeding is controled more hy local topography 

 than hy the direction of the prevailing wind. 



5. The presence of reproduction on one side of a group of trees and its 

 entire absence on the other may oftener he accounted for hy the presence 



