346 Postelsia 
Station? Perhaps, when this spot was upon the 
mountain side, as the great River Fuca swept 
past in the bottom of the valley. Can we find 
along the shore or in the forest any evidence 
whatever upon which to form an answer to the 
question ? 
The answer is nearer than we think. The 
Station building, the Sea Palms, stands upon a 
mass of clay, sand and gravel, with some large 
boulders within it which could have been formed 
in no other way than by the agency of glacial 
ice. It is till or-wnmodified drift: It contaime~ 
many kinds of rock material wholly foreign to 
this part of the coast, of rocks not known to 
occur within the drainage basin of the creek 
quietly flowing past the laboratories. Again, 
the material is arranged in the manner wave 
action is never known to transport and deposit 
pebbles and boulders. 
Elsewhere, repeatedly such material is found. 
Beyond the boundary of this particular shore 
line, glaciated rock surfaces show striz of glacial 
origin,—enough to establish the prevalence, at 
some time in the past, of a lower temperature 
