29 
to by the Rev. W. 8. Symonps, F.G.S., in the “ Record of the 
Rocks.”* He says: “In one of the coal seams called the 
‘High Delph’ is an old river bed filled with sand, clay and 
pebbles. It is known by the name of ‘The Horse,’ but is 
different from the ‘horses’ of the northern coal-fields, which 
are merely faulted rock masses or trap dykes, and not old coal 
river channels.” These remarks of Mr. Symonps induced me to 
submit the Drybrook pebbles to him with the view of ascertaining 
whether they were similar to those found in “The Horse.” 
His reply was that they were not, but that they reminded him 
of the Trias pebbles which occur at Budleigh Saulterton. This 
quite coincided with my first idea as to the age of the Pebble 
bed, and on comparing with the quartzites from Budleigh 
Saulterton, I find a great resemblance. 
To sum up my reading of the section at Morse, (1) I regard 
the difference in dip between the mottled sandstone and 
the beds which rest upon it, as evidence of unconformability. 
(2) It is always unsatisfactory to attempt a diagnosis of the 
age of rocks without fossils, but judging from the lithological 
evidence I have adduced, the pebbles seem to me to be 
thoroughly Triassic, and may possibly be correlated with those 
at Budleigh Saulterton,+ and the beds which follow with the 
lower portion of the Keuper. In short, I am disposed to regard 
the beds which lie above the mottled sandstone as an outlier 
of the Trias formation. 
* Record of the Rocks, p. 388. 
+ Iam aware that Silurian fossils are found in the pebbles at Budleigh 
Saulterton, but they are not numerous. 
