FOREST MARBLE: SHERBORNE. 347 
FT. IN. 
f Bubbly limestone, with Avicula 
Cornbrash [ 
" 
"Pale clay passing down into blue marl - 50 
Hard grey gritty limestone - 1 6 
Sandy clay with thin beds of shale - 9 
Calcareous grit embedded in foxy 
sand : very hard band, splitting into 
flags, which have a blue core 9 
ci 4. Tr 1,1 Clay with thin bands of stone - - 12 
Forest Marble -<! H ard calcareous grit - - 1 
Fissile shelly and oolitic limestone 
10 Oto 12 
Bluish-grey and yellow mottled clays, 
with thin layers of gritty limestone, 
showing tracks of invertebrata - 30 
_Hard blue -hearted limestone - -09 
'Clay ..... 60 
Fullonian I Shelly layer with Ostrea. 
(Fuller's Earth). | Hard earthy marl. 
LShaly clays. 
The lowest beds grouped with the Fuller's Earth were not very 
clearly exposed. The beds of calcareous grit and gritty limestone 
(noticed by Bristow) are of interest, as indicating the local develop- 
ment of beds of this character, which are of importance at 
Charterhouse Hiuton and other places. 
Sherborne to Wincanton. 
The escarpment of the Forest Marble, which is displaced by a 
fault to the east of Sherborne Park, continues from Holt Hill, 
north of Bishops Caundle by Bullstake Hill to Bowden. Here 
the shelly and oolitic limestones have been quarried for ages the 
" Bowden Marble " having had a local repute ; and beneath 
about 10 feet of clays, with thin beds of limestone, we find about 
20 feet of very shelly and slightly oolitic limestones, the upper 
beds of which are reckoned the best. 
The limestones at Bowden are shown in greater thickness than 
elsewhere, and yet in the railway -cutting (L. & S.W.R.) less than 
one mile to the north, no prominent mass of limestones is ap- 
parent. The junction with the Cornbrash is shown west of 
Templecombe station, and thence we pass (westwards) through 
upwards of 50 feet of shales and marly clays with thin bands of 
shelly limestone and fissile earthy limestone. Some of these lime- 
stone-bands, which are false-bedded, expand in thickness west- 
wards, but they appear to be of an inconstant character and to be 
developed on slightly different horizons. 
The cuttings in the lower beds are so much obscured that no 
details can be made out. It is however remarkable that the mass 
of limestones seen at Bowden, does not manifest itself, for the beds 
could hardly be concealed beneath the top-soil of the cuttings. 
Moreover further north at Windmill and Charleton Hills, near 
Charleton Horethorne, the limestones appear in force: so that 
although the Forest Marble is an uncertain formation, subject to 
abrupt changes, it may be that the limestone-beds along the line 
of the railway, are cut out by a fault that runs obliquely across 
