536 A. CHAMPERNOWNE AND W. A. E. USSHER ON THE 
traced westward from the bank of the Barle (opposite Bridgetown), 
where Morte slates are shown normally dipping under the Pickwell 
beds. 
From Exton to Cutcombe no further evidence of the Pickwell 
series is obtainable by the highroad, although, to the south of 
Winsford, a strip of the lowest part of that series, represented by 
intercalations of purplish, buff, and greenish slates, appears to be 
brought down by fault or undulation between Yellowcombe and 
Winsford, but in insufficient force to permit of their extension 
eastward to Widlake, where a dip of 50° to the 8. was obtained in 
Morte slates. 
Near Lock Yard the slates dip as at Widlake. West of Lower 
Quarum they are stained reddish, and exhibit a tendency to slaty 
erit. From Lower Quarum to Whiten Farm the slates have a 
steady southerly dip at 40° to 50° where exposed. The bedding 
seems to follow the direction of the cleavage at right angles to the 
joints eastward of Hoe Farm. It is impossible to distinguish the 
Morte and Ilfracombe varieties of this great series of slates by any 
definite boundary; a provisional line might be dotted through 
Kyeson Hill or Lower Quarum. At the Mill, between Whiten 
Farm and Luckwell Bridge, the Wheddon-Cross limestone-beds 
mentioned by Mr. Etheridge are well exposed ; they consist of about 
30 feet of dark bluish-grey limestone, partaking in every respect of 
the cleavage, which is here in the same plane with the bedding. 
The laminze are frequently coated with films of dark grey shimmer- 
ing shale. Faint traces of crinoids and corals were noticed on the 
bedding- or cleayage-surfaces. At about 15 feet from the top of the 
section the laminz have, in places, coalesced to form even beds of 
limestone 2 or 3 inches in thickness. The dip is 8. 10° E. at 45°. 
From Wheddon Cross the features of the underlying series, the 
Hangman grits, are well shown in the range of hills of which 
Dunkery Beacon forms the highest point. 
The junction of the Morte and Ufracombe slates with the under- 
lying Hangman grits takes place near the bend in the highroad 
north of Cutcombe, where slaty beds rest upon coarse thin even- 
bedded slaty grits, resting on red and brownish, rather coarse, thick- 
bedded grits, with an occasional tendency to schistose structure, 
and dipping 8. 30° E. at from 10° to 13°. The strike changes 
slightly, but the angle of dip remains constant, in the three quarries 
by the highroad. From this point to Timberscombe, grits with 
shales intercalated prevail. A quarry by the highroad N.W. of 
Oaktrow shows a most remarkable unisynclinal curve, rough-cleaved 
greyish and reddish grits folding back upon themselves, as shown 
in the sketch (fig. 2), the cleavage beautifully converging upon the 
axis of the curve, ‘The height of the section is about ZO feet. 
By the lane leading southward to Oaktrow from the highroad 
grey and reddish slaty shales and schists are associated with reddish- 
brown grits, apparently undulating, in which a northerly dip of 7° 
was obtained. A quarry on the east side of Timberscombe exposes 
dark chocolate-brown, red, and greyish grits, in places quartzose, 
