- Fortifications and Defence -
Figure 5·4 The vitrified wall experiment at Aberdeen, Scotland. The wall on successive days
in April 1980. (Copyright: Jim Livingston, Geography Department, Aberdeen University.)
barry
(Barry)
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Figure 5·4 The vitrified wall experiment at Aberdeen, Scotland. The wall on successive days
in April 1980. (Copyright: Jim Livingston, Geography Department, Aberdeen University.)