( 1) General reference
T Wm Salt AS 1926 153 (C G O Bridgeman)
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( 1a) General reference
Nat Hist of Staffs 1686 (R Plot)
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( 2) Field Investigators Comments
F1 WW 28-JAN-57
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( 2A) Oral information, correspondence (not archived) or staff comments
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( 3) Field Investigators Comments
F2 ASP 08-NOV-74
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( 4) Oral information, correspondence (not archived) or staff comments
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