You can do simple searches using this form:

Type	Originator	Title	Date
	Irwin,D & Jarrett,T	Mendip Underground	1999
	Balch,H.E	Mendip cheddar its gorge and caves	1935
	Irwin,D, A. Moody & A. Farrant	Swildons Hole	2007
	Balch,H.E	The Mendip caves	1932
	Balch,H.E	The Mendip caves	1947
	Coysh,A. W, Mason,E.J & Waite,V	The Mendips	1962
	Balch,H.E	The caves of Mendip	1926
	Balch,H.E	The great cave of Wookey Hole	1929
	Balch,H.E	The great cave of Wookey Hole	1941
	Hanwell,J.D & Newson,M.D	The great storms and floods of July 1968 on Mendip	1970
	Knight,F.A	The heart of Mendip	1915
	Stanton,W.I	Timeless Cheddar Caves	1995
	Balch,H.E	Wookey Hole its caves and cave dwellers
	Bell,A	Wookey Hole the cave and its story	1928