4 Postelsia 
of the time between July 18 and Aug) a5sim 
field work. 
The region gone over in these two seasons’ 
work is largely coastal, being mostly confined to 
the open rocky beaches in the vicinity of the 
above named seaside station, and the territory 
surrounding San Juan Harbor. Excursions were 
made inland for several miles in the San Juan 
and Gordon river valleys. 
From this it may be seen that no extensive 
generalizations on plant distribution along the 
west coast of Vancouver Island will here be at- 
tempted, but that rather it will be the object in 
these pages to set forth a few main facts bearing 
upon plant ecology and plant floristics as revealed 
in the particular limited area defined above, not 
striving to enter into too detailed analyses and 
elucidations which can be undertaken only with 
the aid of fuller observations and extensive 
statistics relating to temperature, precipitation 
soil composition and the lke. 
Since the vegetation of a given region is the 
product of both past and present conditions, it 
follows that a survey of these in so far as it can 
