You can do simple searches using this form:

Title	Bulletin
Publisher	Geological Survey of Great Britain, (Bulletin No 14)
Subject	Mines Britain Mendip Shropshire Wales
Notes	1: The central Mendip lead-zinc orefield. 2: The west Shropshire mining region. 3: Mineral veins of the Minera-Maeshafn district of North Wales
Number	B/74
Type	Publication
Web	http://pubs.bgs.ac.uk/publications.html?pubID=B04471