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near Trimmingham. ‘They are noticed in Mr. Greenough’s geolo- 
gical map of England, and are stated by Mr. R. C. Taylor to be 
continuous with the solid beds of chalk, which extend from the base 
of the cliff outwards under the sea. ‘The most southern mass was, 
in 1839, twenty feet high, a few yards in apparent thickness, and 
extended along the beach about 100 feet. ‘The surface of the chalk, 
where in contact with the drift, inclined at an angle of about 45°, and 
the beds of gravel, sand, and finely laminated clay, composing the 
newer deposit, presented a similar dip; but at the distance of a 
few hundred yards to the south, they recovered their horizontality, 
and at the top of the cliff behind the chalk protuberance, but not 
immediately over it, the strata of drift are likewise horizontal. 
Mr. Lyell is of opinion, that both the chalk and the drift have been 
acted upon subsequent to the deposition of the greater part of the 
latter, by some common movement, either sudden or gradual, and 
that this remark applies to the two other masses. He is further of 
opinion, that the effect was produced probably at the upheaval of 
the country above the level of the sea. The second or middle pro- 
tuberance is near the first, and the front of it measured, in 1839, 
sixty-five yards, and its height was from fifteen to twenty feet. ‘The 
third and most considerable mass extended 106 yards, and projected 
about thirty beyond the general line of the cliff. The beds in one 
part were nearly vertical, but in another only slightly curved; and the 
strata of drift, which were in contact with the mass, were also verti- 
cal, though in the lofty cliff behind they were but moderately inclined. 
At both visits, the northern end of the mass of chalk rested on blue 
clay, containing broken flints. Some of the Preventative Service 
men informed Mr. Lyell, that in digging a well at Trimmingham at 
the top of the cliff, chalk was reached at the depth of 120 feet, though 
the height of the cliff is stated to be about 400. Without relying 
on the accuracy of these measurements, Mr. Lyell is of opinion, that 
the protuberances may belong to a much larger mass of chalk, form- 
ing the nucleus of the hill called Trimmingham Beacon. In other 
localities further to the north, where masses of chalk are included 
in the stratified drift and till, and accumulations of white chalk rubble 
enter largely into the composition of the cliff, chalk crops out in the 
interior at a short distance from the sea. The cliffs in front of Over- 
strand, south-east of Cromer, consist of clay and sand ; but at the 
hamlet itself is a chalk pit, in which the strata are much disturbed 
and associated with accumulations of chalk rubble. If the progress 
of destruction continues, the frontage towards the sea will in time 
present a face solely of chalk. Another remarkable mass of chalk 
protrudes from the drift at Old Hythe Point, about three miles and 
a half west of Sherringham. ‘To the west of Sherringham, the fun- 
damental chalk with horizontal layers of flints rises a few feet above 
high water mark, and is generally covered by a ferruginous breccia 
of angular chalk flints, and locally called ‘‘ The Pan,’ in some parts 
of which both entire and broken shells of the Norwich crag are found. 
On approaching from the eastward the mass of chalk, which is eighty 
feet high, the horizontal beds of drift suddenly give place to a vertical 
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