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property. The name of ‘Salts’ is derived from salt-pans, the remains 
of which may be observed to the east of this farm; the sea-water 
was enclosed and left to evaporate, and the residuum of salt collected ; 
but of late years this plan is abandoned, as salt is procured at much 
less expense and trouble. 
I have found the Lutraria Listeri, Cardium edule, Pullastra decussata, 
&e. lying on the banks of many ditches as far as Bramber Castle ; 
the discovery of these marine shells fully proves the ancient extent of 
the estuary of the river Adur. I have also seen them at Sompting, 
and the upper part of Broadwater. 
For the geological history of Brighton, and an account of the en- 
croachments of the sea on the Sussex coast eastward of Shoreham, I 
must refer the reader to the works of Dr. Mantell, who has done so 
much for the advancement of Geology. The Post-Pliocene deposit, or 
elephant-bed forming part of the cliff beyond Kemptown, and the plas- 
tic clay formation of Newhaven, Castle Hill, and Seaford have been 
described in Dr. Mantell’s work on the Fossils of the South Downs. 
It may be interesting to state, which I shall do as briefly as pos- 
sible, the well-authenticated countries in which the Eocene period has 
been observed in different parts of the world. 
In Europe the principal Eocene formation consists of the Paris 
basin, which is chiefly of marine origin, but also containing most m- 
teresting freshwater deposits. 
Mr. Lyell in his ‘ Elements of Geology’ states, “that the area which 
has been called the Paris basin is about 180 miles in its greatest 
length from the north-east to the south-west, and about ninety miles 
from east to west. This space may be described as a depression 
in the chalk, which has been filled up by alternating groups of marine 
and freshwater strata.”’ 
