LA PEROUSE GLACIER 
41 
performed within that period. The section it exposes 
(fig. 22) includes horizontal beds of blue clay, flanked on 
the seaward side by highly inclined beds of similar clay 
alternating with layers of sand. Both these are truncated 
above, and 
overlain un- 
conformably 
by a series of 
horizontally 
bedded grav¬ 
els, in which 
are incorpo¬ 
rated large angular boulders and trunks of trees. This 
gravel is succeeded on the landward side by — and prob- 
FIG. 22 . 
SECTION OF TIMBERED RIDGE NEAR 
LA PEROUSE GLACIER. 
A, laminated clay. B, bedded clay and sand. C, bedded gravel, 
with angular boulders and trunks of trees. D, bouldery till, with 
tree trunks. G, glacier. 
FIG. 23. BARREN ZONE AT MARGIN OF LA PEROUSE GLACIER (LOOKING SOUTH). 
The glacier is at the right. Between it and the forest is a tract occupied by fresh drift, 
with sticks and logs. Photographed in June, 1899. 
ably passes into — a bouldery till, which also contains 
trunks of trees. The clays and sands evidently represent 
an epoch when the coast was more deeply submerged than 
