Author: Short, A;Simms, L G
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Short, A;Simms, L G
The Structural Engineer, Volume 27, Issue 2, 1949
1. Subsidence due to mineral workings takes the forms of a slow lowering of the surface or a sudden collapse, termed a “sitt,” over a small area; and there are great variations between these two extremes. Major David Kerr
Usherwood, Thomas Logan, Palmers Hebburn & Co. Ltd., Hebburn on tyns, Co. Durham