A. R. Horwood—Upper Trias, Levestershire. 369 
height the formation once attained,” and to mark the destruction 
caused by the denuding forces.” 
There is no doubt ‘that the influence of the buried landscape of 
Charnwood Forest has modified the normal bedding of the Red Marl 
in its immediate vicinity, and the footnote Jukes adds shows that he 
attributed the radial dip to the true cause, the natural angle of rest 
of particles deposited on inclined slopes. In exhibiting a resemblance 
to quaquaversal dip in relation to the surrounding synclines, which 
meet the deposits showing radial dip, it may be that in some cases. 
the dip is not always radial in relation to the older rocks, but due to 
undulations caused otherwise, or as at Enderby and Longcliffe, for 
instance, to the anticlines of the Charnian range itself. 
The height of the Trias at Bardon where skerry bands le high up 
in the big quarry, whilst capable of more than one interpretation as 
already remarked, may very probably represent the flexure of 
a portion of a dome structure of which Bardon is the axis, but the 
beds cannot certainly be correlated with their continuation at lower 
levels under the Red Marl, and are only exhibited on one side of the 
hill. If this interpretation is correct, it does not affect the equal 
probability that the Red Marl rose on all sides to heights approxi- 
mating to that reached at Bardon. 
Mr. Harrison, in describing the relation of ie Red Marl to the 
_syenite of Enderby, says ‘‘everywhere they follow the irregular 
surface of the syenite, in one place filling up a deep hollow in that 
rock, so as to be perceptibly curved”’. And as to Croft, he remarks, 
‘‘Here again we see the Keuper red marls and sandstones resting 
upon the syenite, from which they slope rapidly away in all 
directions.”’ It is interesting to note that then,in 1884, Mr. Harrison, 
in writing of the polished surface of the syenite overlaid by sand and 
‘boulders’, remarked that they ‘‘ may have been due to the friction 
of the sand’’. Thus, while describing this as an ancient sea-cliff (at 
320 O.D. like the other horizons) he was the first to suggest eolian 
agency for this phenomenon locally, as Professor Watts did not 
describe the wind-polishing at Mount Sorrel till 1889.. The explana- 
tion of curvatures at Enderby and Croft may be attributed to radial 
dip influenced by dome structure in the first case, and at Croft 
initially to radial dip between, more than one submerged peak giving 
rise to catenary bedding, though it is probable that they are of the 
same character as the undulations elsewhere. 
A. H. Atkins, in noticing ‘glacial markings’? in the Red Marl at 
Small Heath, near Birmingham, remarked upon the contorted nature 
of the white bands and of the twisted and broken beds of clay above, 
and at Adderley Park upon puckerings in grey bands about 6 inches 
high, like those in Red Marl at Sileby, perhaps. These phenomena 
were most likely also due to undulations. Hull in 1860 remarked 
upon the probable influence of an anticlinal in producing the inlier of 
1 “Tt is not meant that even the highest beds of the New Red Sandstone ever 
attained the same general height over the surrounding country which they have 
in the Forest, as they would naturally be deposited on a gentle slope, rising 
higher on the sides of the hills than elsewhere.’’ ; 
DECADE VI.—VOL. III.—NO. VIII. 24 
