370 =A. R. Horwood—Upper Trias, Leicestershire. 
sandstone at Diseworth, coupled with denudation. He also suggested 
the occurrence of a syncline at Smisby of Red Marl. 
Under stratigraphy and ante (under Tectonics) I have alluded to 
the evidence of flexures in the Orton Sandstone group and the Dane 
Hill group, whereby loop-like outcrops are produced owing to the 
influence of undulations in the beds themselves. Several circumstances 
combine to render the data for their delineation on the map frag- 
mentary, apart from the general obscuring effect of the drift. The 
Orton-on-the-Hill series is developed along the outcrop, but this is 
buried to the east under drift and the influence of dip, and cut off to 
the west by the River Mease, and to the north by denudation of the 
Coal-measures and higher beds (post-Triassic). Around Kegworth 
it is buried by drift and cut off by the Rivers Trent and Soar. 
The Dane Hill series is actually persistent, but occurs in isolated 
patches due to (1) Soar Valley excavation, glacial and recent (as well 
as pre-glacial); (2) covering of drift, and pre-glacial denudation 
elsewhere. They have been well described by L. Richardson in the 
Eldersfield district, and by Dr. Matley in Warwickshire. In Notts 
they have been noticed at Lambley Dumble, and at Barton Joyce by 
Dr. Sherlock, and influenced by faults at Thorneywood. The dip 
has been found to amount to as much as 50°. In the Melton area 
also the dip is thought to be influenced by ‘‘small undulations 
recognizable in the Lias’’, and between Moorhouse and Barrel Hill 
Mr. B. Smith noted disturbances following the direction of the dip, 
and the dip increases in the Gleet Valley, the rocks are gently rolling 
with the axis of the folds at right angles to the general strike of the 
beds. In the Ollerton district they have been noted in the water- 
stones at Rufford Park, and in the Red Marl an anticline trends 
through Muskham Wood and Eakring, while Goosemoor Dike is 
excavated along asyncline. Anticlnes occur in the waterstones at 
Kirton Wood also, in the Red Marl synclines at Mather Wood and 
Kersall, anticlines and synclines at Bathleyford Bridge, Tuxford. 
It is thus plain that the undulations in the Trias are of pretty general 
occurrence. Whilst the flexures produced are largely due, as exposed 
at the surface, to river development and denudation, their original 
form was not unlike their present contouring. That these phenomena, 
when viewed in isolated instances as catenary bedding, cannot be 
attributed to sagging, is quite obvious when their relation to earlier 
foldings is recognized. It should also be remembered that apart from 
these undulations the general dip is south-east, and this was more or 
less original, whilst the existence of attenuation in some parts to the 
north-west, along the east outcrop, and in Cheshire, Staffordshire, 
and Warwickshire accounts for any supposed sagging, attributed to 
other causes. 
The overlapping of the different members is shown in numerous 
instances, a fact which can only be accounted for by subsidences 
and deposition by aqueous agency. The Lower Keuper lies in 
hollows of the Pebble beds, both in the Mease Valley and in Notts, 
abutting against the ridges they form. The Red Marl overlaps the 
Lower Keuper, and both the Bunter. The Lower Keuper also 
overlaps the Permian. It is probable, moreover, that the surface 
