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)

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)