See: Roberts, Peter K., 'Canal Tunnels associated with mineral
exploitation'; 'Boat Levels Associated with Mining: I. Coal Mining'; 'Boat
Levels Associated with Mining: II. Metal Mining'; in Industrial Archaeology
Review, V, (1981), 5-14, 85-95, 203-16, respectively.
Stafford M Linsley
Lecturer in Industrial Archaeology
The University
Newcastle upon Tyne
England
NE1 7RU
Tel. 0191-222 6795
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