Dr. H. Woodward—Bronteus from Devonian, Eifel. 407 
Clay, sometimes on the Bagshots. The Bagshot Beds, equally with 
the London Clay, lie below the irregular plane of erosion which forms 
the base of the ‘ gravel cap’. 
In horizontal extent this thick patch of Bagshots may not cover 
more than a few square rods or acres at most. On the western slope 
of the hill it is certainly cut into deeply by the later gravel. In none 
of the writings of Trimmer, Goodchild, Prestwich, Spurrell, nor of 
Mr. Whitaker, who have all described the Shooters Hill sandy and 
clayey gravels from numerous old exposures, can I find any references 
to loams and sands like those described above, nor have I seen in 
many trenches and pits examined, during the last seven years, on the 
summit and slopes of the Hill any indications of other thick patches 
of similar beds. Although it therefore seems certain that the Bagshot 
Beds are confined to a small area on the very summit of the Hill, the 
interest of the patch is twofold. Firstly, it forms a link between 
the Bagshots of the main area and those at Hensbrook in Sheppey ; 
and secondly, the height of the top of the London Clay can be definitely 
stated as 412 O.D. The basement pebble-bed of the London Clay 
was exposed in 1905 at about 240 O.D. at the junction of Well Hall 
Road and the Dover Road, half a mile from the section showing the 
top, described above. It has hitherto been impossible to estimate the 
true thickness of the London Clay of Shooters Hill, since it was not 
known that the top of the deposit remained beneath the ‘ gravel cap’. 
When the easterly dip through the Shooters Hill has been found an 
accurate estimation of the true thickness will be obtainable. 
VIII.—Ow a Pyerprum or Bronrzvs FROM THE DEVONIAN OF GEROISTEIN, 
KIFEL, PRESERVED IN THE COLLECTION oF THE LATE Mr. TowNsHEND 
M. Hatt i true ArHENeUM, Barnstaple. 
By Henry Woopwarp, LL.D., F.R.S., V.P.Z.S., F.G.S. 
Mes years ago the late Mr. Townshend M. Hall, F.G.S., of Pilton, 
Barnstaple, specially devoted his energies to the geology and 
paleontology of the Devonian rocks of North Devon, and in addition 
to a set of fossils acquired from him, now in the British Museum 
(Natural History), he left a series of local fossils to the Museum in 
the Atheneum at Barnstaple. This collection has been kindly curated 
by Mr. J. G. Hamling, F.G.8., of The Close, Barnstaple, North Devon, 
who takes a deep interest in the geology of the district. Mr. Hamling 
has called my attention to an interesting specimen in this collection 
which proves to be a pygidium of Bronteus, collected by the late 
Mr. Townshend M. Hall in the Devonian rocks of Gerolstein in the 
Eifel, which country he had visited many years ago in company with 
the late Mr. John Edward Lee, F.G.S8., of Torquay. In remembrance 
of that excursion Mr. Hall had presented the counterpart of this fossil 
to Mr. J. E. Lee, and it was supposed to be in this gentleman’s 
collection, but it cannot now be found. There is, I believe, a good 
cast of the fossil in the Townshend Hall Collection in the Natural 
History Museum. 
