200 Proceedings of the Royal Physical Society. 
GEOLOGICAL NOTES ON THE DIVISIONS OF THE 
CARBONIFEROUS FORMATION AS DEVELOPED 
IN BRITAIN.! 
SCOTLAND. 
Upper CoAL-MEASURES. 
Typical Area in Britain.—Radstock and Farrington Series 
of the Somerset Coal Field. 
There still remains some doubt as to the occurrence of this 
division of the Coal-Measures in Scotland. The late Mr 
EK. W. Binney, in a paper entitled “ Further Observations on 
the Carboniferous, Permian, and Triassic Strata of Cumber- 
land and Dumfries,” ? identified certain beds near Canonbie 
as Upper Coal-Measures. From some reddened shales at 
Penton Linns, about 3 miles east of Canonbie, I have seen a 
few specimens of fossil plants which were collected by 
Mr A. Macconochie of the Geological Survey of Scotland. 
Among these were Neuwropteris flexuosa, Bronet., and a 
Pecopteris, which if not P. arborescens, Schl. sp., is a species 
closely allied to it, but unfortunately the preservation of this 
latter specimen was too imperfect to allow of a satisfactory 
determination. P. arborescens I have hitherto only seen in 
the Upper Coal-Measures, and NV. flexuosa in the Upper Coal- 
Measures and in the Transition Series lying between the Upper 
and Middle Coal-Measures in the South Wales Coal Field. 
Without, however, expressing any definite opinion about 
the position of these Canonbie beds, it is tolerably clear that 
their place is well up in the Coal-Measures, and apparently 
not lower than the Middle Coal-Measures. 
MiIppLE CoaL-MEASURES. 
Typical Area.—The Dudley Coal Field, South Staffordshire. 
“The red measures overlying the coal-bearing strata.” 
“ Coal-Measures d°’” of the Geological Survey of Scotland. 
In the general section of the rocks occurring in the 
Kilmarnock district, described in the “Explanation” to the 
1 All reference to the associated volcanic rocks is omitted from these notes, 
2 Mem. Lit. and Phil. Soc. Manchester, vol. ii. , ord ser,, 1865, p. 343. 
