122 
The diversified material composing the Eocene strata as seen 
on the coast, the arrangement of the material, and an increasing 
altitudinal range passing inland, point to a large fan-like accumu- 
lation adjacent to a sinking land-surface with a sea-scarped front, 
over which the sediments have been poured down. If such has 
been the case, it is not possible to determine the thickness of the 
mass on the basis of an observed inclination and horizontal exten- 
sion of the deposit ; moreover, it appears as we recede from the 
main locus of accumulation that the nature of the material 
changes, and finally gives place uniformly to a polyzoal limestone, 
such as characterises the line of sea-cliffs on the west side of St. 
Vincent Gulf. And it is noteworthy that this last deposit, 
uniform in itself, contains the more widely diffused organic re- 
mains ; the more local sediments have for the most part restricted 
species. 
A similar, but smaller, basin is that which has its chief locus 
of accumulation in Witton Bluff, being separated from the former 
by the Archean outcrop, which extends inland from near the 
mouth of Pedlar’s Creek. 
It is impossible by words to adequately convey to the mind the 
changing nature of the Eocene sediments composing this section, 
but as making some approach in that direction, a few vertical 
sections at varying intervals throughout the whole cliff frontage 
are now presented :— 
NortH oF BLANCHE Point, Mastty’s Bay (1) IN ALIGNMENT OF E. & W. 
Roap Brtw EEN SECTIONS 374 AND 375. 
ft. in. 
( Greenish marly sand rock and mottled (red 30 8 
and white) sand rock ¥ rer 
52 ft. Whitish-yellow nodular impure ‘limestone 21 4 
White and brown sands in courses ... 
ieocmen Glauconitic limestone ” 4 0 
OCENE, 
G8 ft. passing into sand es set a 3 0 
Tron-shot sand, drift- bedded — ste > + (O16 
High-water- mark ve aus 
NortTH OF BLANCHE Point, Mastin’s Bay (2). 
Recent travertine and soil $3; su 5 6 
‘Green marly sand-rock . 4 ... about 12 0 
Red and white (mottled) ‘sand- rock .. “about Zoi 0 
MIOCENE. Raggy white calcareous sand-rock ao 6 6 
64 ft. 6 in. Fine yellow sand.. | Se 
White calcareous sandy clay with calcareous 
bands 19 10 
Glauconitic white limestone, very ” fossilif- 
Binciesi | erous, rich in echinoids and palliobranchs 4 0 
39 ft. 8 in eae erin colored sands somewhat calcareous 11 0 
ele Pde c Brown iron-shot sands (teeth of Zamna sp.)... 24 8 
High water-mark ~ 
