110 
Cossham— Coal-measures at Kingswood. 
The writer has found the following organic remains at the above 
localities :— 
Sigillaria; Sweeney Mountain; ra- 
ther rare. 
Strephodes; Sweeney Mountain ; ra- 
ther rare. 
Stems of Encrinites; Llangollen. 
Productus cora; Sweeney Mountain ; 
very plentiful. 
Spirifer; Sweeney Mountain. 
Lingula mytiloides ; Sweeney Moun- 
tain; rare, 
Rhynchonella pleurodon; Sweeney 
Mountain ; plentiful. 
Orthis resupinata; Llangollen. 
Pecten ; Sweeney Mountain; rare. 
Edmondia sulcata; Sweeney Moun- 
tain. 
Sanguinolaria (?); Sweeney Moun- 
tain; rare. 
Schizodus ; 
plentiful. 
Pleurotomaria decipiens; Sweeney ; 
rare. 
Bellerophon ; very rare. 
Orthoceras giganteum (?) ; Sweeney ; 
very rare. 
Phillipsia; Sweeney ; rare. 
Sweeney Mountain} 
Savin’s Quarry has yielded a splendid specimen of Orthoceras. 
In length it was four feet six inches; and its diameter at its 
ends were ten and five inches respectively. ‘There can be little 
doubt that further search will be rewarded with many additional 
fossils; but the above is enough to fill up the supposed fzatus in 
the fauna of the Millstone-grit. Se 
V. ON THE GEOLOGICAL STRUCTURE OF THE DISTRICT AROUND 
Kincswoop Hitt, NEAR BRISTOL; WITH ESPECIAL REFERENCE 
TO THE SUPPOSED DEVELOPMENT OF MILLSTONE-GRIT IN THAT 
NeiegHsournoop. By Hanprext Cossuam, Esq., F.G.S. 
(Read before the British Association, Sept. 1864.) 
HAVE for some years had serious doubts as to the correctness 
of the Map of the Geological Survey so far as it relates to the 
supposed presence of Millstone-grit in the northern portion of the 
Bristol Coal-field in the neighbourhood of Kingswood Hill; and in 
a foot-note to a most valuable lecture delivered by my friend Mr. 
Robert Etheridge, F.G.S. (of the Royal School of Mines) at the 
Bristol Mining School in 1857, and published in a volume of Lectures 
issued by that Institution, I had, so long ago as that year, expressed 
doubts as to the existence of Millstone-grit at the surface near 
Kingswood. Since then I have had much greater opportunities of 
investigating the matter, having taken, with my partners, a large 
tract of mineral property in that district; and the results of those 
investigations thoroughly confirm the doubts I had previously enter- 
tained, and in fact fully satisfy my mind that what is shown as 
Millstone-grit on the Government Geological Map, as also on the 
valuable map lately published by Mr. William Sanders, F.R.S., of 
Bristol, is really nothing more than one of the sandstones (the ‘Holmes 
Rock ’) so common in the Coal-measures proper, and developed on a 
grand scale in the Pennant-grit dividing the Upper and Lower Coal- 
