Subject ASC0000o6w
Wiltshire archaeological and natural history magazine.
v.4=no.10-12 (1857-1858), Page 130 (1858)
Natural History Museum Library, London
BHL Page 13975881
Keywords
surface soil brick earth clay drift rock seam sand chalk ground cross section geology strata avon oxford clay Avon Oxford Clay earth Drift Broughton Gifford Wiltshire flint marble surface soil Kelloway rock chalk flints lower green sand coral rag forest marble broughton Gifford