DEPOSITED IN WATER. 
17 
Red and black plates alternating. 
50 ft. Red beds. 
10 ft. Sandstone, gray, argillaceous, full of lepidodendra and stigmaria (laminated 
below, and with a sort of fire clay at top). 
15 ft- Gritstone and black plate alternating. 
60 ft. Very black plate, and ironstone balls, and courses. 
285 ft. Limestone, many beds, the top richly cohered with foraminated and other 
corals, and some crinoidea of mountain limestone ; sandstones and plates 
of great thickness occur below, but are not well seen. It is a curious 
fawn-coloured stone, traversed by veins of copper, barytes, calc spar, &c. 
The section on the road from Kirby Stephen to Ravenstonedale 
is very satisfactory. The north-eastward dip here exposes in a few 
miles a great thickness of beds, and the comparative freedom from 
detritus of this front of Langdale fell allows them to be fully examined. 
At the summit of the road on Ash fell, the ordinary limestone includes 
a red fossiliferous limestone bed ; and, about seventy feet below the 
summit, the limestone mass is seen in a long scar, resting on yellow 
and purple sands and sandstones without fossils. One hundred and 
fifty feet lower, limestone beds, with productas, ten or twelve feet thick, 
appear under red sandstone and red clay. Thirty feet of red sandstone 
succeed ; below are six feet of limestone with lithodendra and pro- 
ductse. Red sandstone is repeated, and similar alternations of thin, 
mostly reddish, slaty, fossiliferous limestone, and much thicker beds 
of red sandstone, for one hundred and fifty feet more. Below this it 
is difficult, for sixty feet, to discover the stratification ; but then flat 
red limestone beds appear, with spines of cidaris vetusta : limestone 
beds soon succeed, and continue for a thickness of at least two hundred 
feet, dipping N. E. 15° or 20° invariably. Much of this lower lime- 
stone is dark, with few fossils (a small terebratula was found). It holds 
pebbles of quartz. From below it rises the slate of Langdale fells, but 
the junction is obscured by alluvium. ( See Diagram, No. 3.) 
The same succession is traceable on the road from Orton to Tebay, 
and in the country round Sliap, and Lowther castle, and occurrences 
D 
