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)
Hull, Edward, 1829-1917; Dakyns, John Roche, 1836-1910; Tiddeman, Richard Hill, 1842-1917; Ward, James Clifton, 1843-1880; Gunn, W. (William), 1837-1902; De Rance, Charles Eugene, 1847-1906; Etherridge, Robert, 1819-1903