216 
THE GEOLOGIST. 
tween the one hundred and the sevent^'-five contours, a bar of small 
bivalve shells* was discovered, 8 feet below the surface, in a deposit 
of fine sand. I have not yet found any on this horizon in other loca- 
lities, but it may be worth while prosecuting the search further. 
Passing southward marine drift appears to line the shore at about 
the same elevation from Ulverstone through the grounds of Conis- 
head Priory to Bardsea. Here they are cut off, and we do not re- 
cognize them again till we get below Leece, where they are found 
sweeping over the promontory from east to west in elongated ridges, 
one or two of which, by the gradual inroads of the sea, have come to 
form headlands on the southern shore. 
Coast-line Deposits. — One of these headlands, Rabbit Hill, at 
Barrow in Eurness, saved from the sea by railway constructions, is 
now rapidly undergoing demolition to form levelled sites for streets, 
and its long entombed granite boulders thrown out to the light of 
day. On the south coast of Furness, at Back-House-Close Point,t 
25 feet raised beaches, containing layers of existing British shells, 
and abutting against the headland, have in the recollection of persons 
now living been cut away by the sea. It is the same at Cunninger 
Point, while in what may have been, so to speak, the recesses of 
the coast, some still remain ; only in their turn to yield eventually 
to the constant wasting of high tides. Traces of their broken lines 
occur all the way from Rampside to Aldingham, where they begin to 
recline on the boulder clay. The former tide-floor presented by 
this deposit appears to have supplied a clayej^ness to the shell and 
pebble matrix, which renders their extraction, at this particular spot, 
extremely difficult, the mass being nearly as hard as the boulder 
clay itself. 
-For the naming of the shells, I am wholly indebted to the kind- 
ness of my friend Miss Gifford, of Minshead, Somerset: — 
Turlo (Litorina) rudis was most abundantly found in the hard 
shell-beds at Aldingham. Of this species, Mr. Woodward remarks, 
that it frequents a^higher region than T. liiorea, where it is scarcely 
* From the description, I judge they might be Tellina. 
+ Some of the stones in this chff are striated, leading to the supposition that it might 
prove to be an outstanding ridge of the boulder clay resting on Permian strata. As I 
did not discover the fact of their striation on the spot, it must be left undetermined for 
the present. Stratified beds of sands appeared in the upper part of the cliff, but its face 
was much obscured by water springs washing the sands down from above. 
SUELL LIST. 
Murez erinaceus. 
Buccimim undatum. 
Buccinum reliculatum. ' 
Purpura lapillus. 
Tarritella terehra. 
Turbo (Litorina ) litorea. 
Turbo (Litorina) neritoides. 
Mytillus edulis. 
Gardium edule. 
Madra solid a. 
Tellina solidula. 
Turbo (LitorinaJ rudis. 
Ostrea edulis. 
Ostrea (Pecien ) varians. 
