Dr. Arthur Rowe — Uintacrinus near Dover. 75 



flint is seen at the top of the cliff at the north side of St. Margaret's; 

 Bay, and this we believe to be the same table of flint which we have 

 called in Thanet the " Whitaker 3-inch tabular band." If our 

 inference be correct, we are here within 21 feet of the "Barrois 

 sponge-bed," which forms the basement-bed of the Umtacrinus-hand 

 in Thanet. 



In the Autumn of 1902 we determined to examine all the pits 

 in this area which were situated on sufSciently high ground to afford 

 a chance of finding this criaoid. In walking from Dover to Walmer 

 we passed through Ringwould, which is 1^ miles south of Walmer 

 and the same distance west of the coast, and decided that, as it was on 

 the highest ground in the district, on the 200 feet contour-line, and 

 sufficiently far from the coast to bring up the bed in question, it was 

 here that our quest should begin. We found Uintacrinus in the pit 

 called The Hooketts, at Ringwould (Pit Ko. 8 of this paper), but had 

 no time to follow np the search on that occasion. However, we took 

 characteristic body-plates and brachials to General C. F. Cockburn, of 

 Dover, and asked him to continue the examination of this limited area. 

 This he did with such good success that he was able to add the pits at 

 Appleton Farm, Court Lodge Farm, as well as those north-west of 

 Longclose Wood and north of Ripple Cross, to the list. 



Standing on the high ground at Ringwould, it is clear that we are 

 on a ridge, and that the ground falls away in all directions save that 

 on the south-west, where the village of ^lartin is situated. Parallel 

 with the Ringwould ridge, and between it and the sea, is another 

 ridge, the northern extremity of which is called Wood Hill, and the 

 centre of which is known as Free Down. A glance at the map 

 (Ordnance Survey, 6 inch. Sheets 58 S.E. and 58* S.W.) will show 

 that both these ridges are surrounded by the 200 feet contour-line. 

 It is obvious, then, that our work lies along these two ridges. 



A large number of pits have been examined between Walmer and 

 Dover by General Cockburn and ourselves, and the numbers given 

 simply indicate the order in our notebooks in which the quarries were 

 examined. The two pits in the valley separating the Ringwould 

 and Free Down ridges are situated in the zone of Micraster cor- 

 angtnnum. 



We now give the pits in the Uintacrinus-chaYk and the list of fossils 

 obtained in them. 



'No. 1. We have here three small roadside exposures on the hill 

 leading from Martin Mill Station to the village of Martin. The flints 

 are in the form of rather small scattered nodules, mostly with thin 

 cortices, but a few have thicker cortices. Between us we have 

 examined these little exposures four times, and the only indication of 

 Uintacrinus is a single body-plate found by General Cockburn. The 

 other noteworthy occurrences are Actinocamax verus, Comdus conicus, 

 and Rhi/nchonella plicatilis. The thick cortex of some of the flints is 

 suggestive of the zone of Micraster cor-anguinum, and but for the plate 

 of Uintacrinus we might possibly have felt inclined, on purely 

 lithological grounds, to have placed the lowest of these little sections 

 in the upper limit of that zone. Those who are familiar with the 

 coast-section at Kingsgate in Thanet, however, will remember that 



