The geology of the Burnley coal-field and of the country around Clitheroe, Blackburn, Preston, Chorley, Haslingden, and Todmorden :
Quarter sheets 88 N.W., 89 N. E., 89 N.W., and 92 S.W., of the 1-inch geological maps ; Published by order of the lords commissiomers of Her Majesty's Treasury /
By Edward Hull, J.R. Dakyns, R.H. Tiddeman, J.C. Ward, W. Gunn, and C.E. DeRance; Table of fossils by R. Etheridge.

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