File:The Quarterly journal of the Geological Society of London (13365306705).jpg

272
PROCEEDINGS OF THE GEOLOGICAL SOCIETY. .Jan. 23,
The next section is at Whitton Street, two and a half miles north-
west of Ipswich. In some fields to the westward of the high road
there are two pits, one of which exhibits the following section. (See
fig. 19.)
Fig. 19. — Section near Ipswich.
= «. Mixed clay and gravel.
b. London clay; brown and occasionally light bluish-grey clay,
with a few small ferruginous concretions, passing down into
slightly micaceous brown clay laminated with ochreous and
yellow sand. No fossils.
c. Round flint pebbles — 1 to 10 inches in diameter — in ochreous
sand and brown clay. Teeth of Lamna not uncommon. No
other fossils,
Light ash-coloured sand, with a few small clayey concretions.
No fossils.
The chalk is not here reached, but it crops out at a short distance
lower down the hill, and at a level of not exceeding thirty to forty feet
below stratum " c." There are some pits adjoining Ipswich near the
Woodbridge road which exhibit sections of the London clay over-
lying sands which I believe to belong to the lower Eocene series. I
have not examined these pits in detail.
Passing on toWoodbridge, we arrive, at a distance of one mile south
from this town, and on the banks of the river, at the Kyson brick-
field, a spot well known by the circumstance of the teeth of the
Monkey having been found there*. The exact position of the bed in
which these remains occur has been considered rather problematical,
but I have little doubt that it belongs to the basement bed of the
London clayf . (See fig. 20.)
Fig. 20. — Section at KysonX-
b. London clay. Above this clay, and a little higher
on the slope of the hill, the red crag crops out.
Round flint pebbles in yellow sand. Teeth of
LamncB common ; those of a species of Monkey
rare. This crops out on the level of the river.
Light- coloured sands ; depth unknown. Large
Ostrece said to occur in some concretions in the
upper part of this bed.

• Owen, Annals Nat. Hist. vol. iv. p. 191."
  

t It has been already assigned by several geologists to the beds beneath the
London clay.
t T cannot quite depend upon this section, as I have mislaid my original notes