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William Whitaker's autographed frontispiece Underground geology in the south-east of England. Scan made from Tracts vol 31 p679 [ original tract held in the North of England Institute of Mining and Mechanical Engineers and uploaded with the authority of their librarian Jennifer Hillyard.
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{{PD-Old}} {{PD-US}} William Whitaker's autographed frontispiece ''Underground geology in the south-east of England''. Scan made from Tracts vol 31 p679 [ original tract held in the [https://en.wikipedia.org/wiki/North_of_England_Institute_of_Mining_an...