56 
LOWER OOLITIC ROCKS OF ENGLAND : 
through the cliffs, so that only a face of the Midfoivl Sand is 
preserved.* The Fuller's Earth is dragged up along the fault- 
plane, and the Sand is also broken and disturbed, while traces 
of Inferior Oolite hive in places been wedged in. At low-iide 
ledges of the harder layers in the Sand may be observed. The 
Sand at this end of the cliffs is gradually disappearing Tinder 
the influence of denuding forces, 
so that in time the beds banked 
up against the Fuller's Earth will 
be entirely removed. 
The finest exposures of the 
Sand are in the cliffs east of 
Bridport Harbour, and these ex- 
tend to Burton Bradstock. Their 
remarkable banded appearance is 
due to the influence of atmo- 
spheric denudation, the harder 
layers of calcareous sandstone 
standing out in relief. A slight 
inland-dip in the strata tends to 
keep the cliffs perpendicular ; but 
falls of rock not infrequently 
take place, and their recent occur- 
rence may be noticed here and 
there by the smooth unweathered 
faces of the cliff, where the sea 
has cleared away the debris. (See 
Fig. 33.) 
Fossils are not abundant in the 
sands, nor are they well pre- 
served. Bclcmnitcs, known to the 
fishermen as " Fairies fingers," 
and portions of Ammonites known 
as " Lobster's tails," may be 
found here and there. I obtained 
Ammonites (a fine variety, near 
to A. concavus), Belemnites abbre- 
viates ?, Pccten laviradiatus, 
Cucullcea, Myacites tenuistriatus, 
and Rhynchonella jurensis 1. Dr. 
Wright mentions A. variabilis ; 
and Mr. Hudleston has recorded 
from the upper 7 feet of the 
strata, A, torulosus, A. opalinus, 
A. subinsignis. Turbo subdupli- 
catus, Waldheimia anglica, and 
Rhynchonella cynocephala.^ 
* See Fig. 32 ; und Fig. 41, p. 52 in Memoir on the Lias of England and Wales ; 
and H. S. Solly and J. F. Walker, Proc. Dorset Nat. Hist. CluW, vol. xi. p. 118. 
f Gasteropoda of the Inferior Oolite (Pal. Soc.), p. 31 ; see also Oppel, Jura- 
formation, p. 316 ; and S. 8. Buckman, Quart. Journ. Gcol. Soc., vol. xlv. p. 451. 
