GROOM : EFFECT OF FAULTS OK CHARACTER OF SEASHORE. 367 
not shown in the map, but their effect in displacing the strata is 
visible. As far as can be judged from the survey-maps the prevalent 
direction of the channels in the strip of coast immediately to the 
S.W. is likewise N.W. The same may be said of the portion of the 
coast between that represented in figs. 1 and 2. as observed in the 
field. 
Fig. 2. Map showing the principal faults which have effected 
the Culm Measures exposed in the intertidal platform about two- 
thirds of a mile W. of Westward Ho. The further continuation of 
the map to the WE. would show a number of other faults running 
respectively N.E. and N.W. : the survey map, for instance, shows 
about six N.E. channels, most of which traverse the whole breadth 
of the rock exposed. 
Fig. 3. View at low water from the summit of the cliff of a 
portion of the shore between those represented in figs. 1 and 2, 
showing one of the larger N.W. faults, with a northerly one abutting 
against it. To the right is seen a second smaller N.W. fault. The 
small sandstone ridge to the left is separated from the shales to the 
extreme left by a strike fault. (From a photograph by Mr. Percy 
Groom.) 
Fig. 3a. View at low tide from the top of the cliff of a portion 
of coast immediately to the N.E. of that shown in fig. 3 ; the same 
faults are shown together with other small ones, belonging to the 
N.W. and N.E. systems. (From a photograph by Mr. Percy Groom.) 
Fig. 4. View from summit at cliff of part of the coast shown 
in fig. 2, immediately to the N.E. of the curved N.W. fault towards 
the S.W. of that map. The tide is partly up, and the small promon- 
tory to the N. of the fault is converted into a number of reefs 
traversed by two N.E. and one N. fault. The more north- 
westerly-situated of the two long N.E. faults, shown in the map, is 
seen filled with water near the upper right-hand corner, whilst portions 
of the two southern branches of the westernmost of the three N. 
faults are seen in the fore-ground. The N.W T . curved fault itself is 
marked by the channel crossing the sandstone ridge to the left. 
(From a photograph by Air. Percy Groom.) 
Fig. 5. View from summit of cliff of part of coast ; on the left 
