The Quarterly journal of the Geological Society of London . n the limestone also failed to find acceptance, andthus his differentiation of the plateaus into three distinct levels orterraces entirely breaks down. It is evident, therefore, that we may recur to the view which,unless there was evidence to the contrary, Pengelly admitted to bethe most simple and natural of any, namely, that the variousplatforms which are at rather different levels in dif-ferent places are really parts of one inclined plane,and were consequently formed at one and the sametime. In what follows I shall assume that thi
The Quarterly journal of the Geological Society of London . n the limestone also failed to find acceptance, andthus his differentiation of the plateaus into three distinct levels orterraces entirely breaks down. It is evident, therefore, that we may recur to the view which,unless there was evidence to the contrary, Pengelly admitted to bethe most simple and natural of any, namely, that the variousplatforms which are at rather different levels in dif-ferent places are really parts of one inclined plane,and were consequently formed at one and the sametime. In what follows I shall assume that this was the case. Description of the Plateaus. Before proceeding further, it is necessary that I should indicatethe hills and plateaus which seem to have been parts of thisoriginally continuous plain, and it will be convenient to begin withthe northern part of the area. The northern limit of what may be called the Torquay districtis the range of hills which runs through Watcombe Park. Fromthe foot of this we find a platform stretching out on each side of i2. Eocene I I Alluvium Vol. 6^.~\ ORIGIX OF THE PLATEAUS AROUND TORQUAY. 109 Barton, reaching on the west side to Clennon Lane, and on the eastside including the summit of Mincent Hill, or rather what is left ofit, to the east of the extensive quarries (see fig. 2). This platformslopes southward from a level of about 360 feet to about 340 feet. On the western side it isconnected by a slightly lowerridge with Lummaton Hill, thesummit-level of which is notindicated on the Ordnance-map,but is probably about 340 top is very flat, and hasevidently formed part of the sameplateau, partly separated by thehollow or combe which has beenexcavated out of the interveningstrip of Permian clay. Lummaton Hill slopes grad-ually south-westward into thenarrow valley which is occupiedby the hamlet of Hele ; but theground rises again to the southof this into another flat-toppedeminence, which is generallyknown as Windmill Hill, al-though it
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