149 
Fr. In 
Solid beds of Oolite rather marly at base... 1 0 
Dense bed patched with blue... pia 
Mottled clay, blue and yellow ... aes, ae 
Dense crystalline limestone bed, blue in 
centre, resting on Fuller’s Earth clay, 
yellow on top, blue beneath, in some 
places containing nodules of Fuller’s 
earth rock ne tant poeta ite 
7 
(2) A SECTION STILL FURTHER EASTWARDS GAVE— 
Fr. In 
Series of Rag Beds resting on ... “os 
Fuller’s earth clay (blue) a 0 7 
Fuller’s earth tough nodular limestone 0 3 
Yellow clay and nodules | 
9 
This gives a sufficiently accurate general character of the rock 
on the plateau. Fossils are very scarce, but here and there 
the characteristic coarse-ribbed Rhynconella (obsoleta) was found. 
The beds are locally termed ‘bastard freestone,” and used 
chiefly for rough work, such as stone stiles and walling. 
The line of the Avon valley through Bath seems to be the 
dividing line between the Great Oolite on the S., with its 
commercially valuable “ Freestones” of commerce on the one 
side, and the comparatively valueless beds of ‘“ bastard freestone ” 
on the other. 
The fault which the late Chas. Moore considered ran along the 
line of the valley and brought the beds down on the S. side, may 
account for this lithological difference, the deposit on the S. 
side going on and resulting in the finer oolitic beds and Upper 
Rags, whilst that on the N. ceased with the laying down of the 
Lower Rags, owing to the elevation of that side above the 
reach of the waters; or the absence of the middle and upper 
