„ of Bristol coal-fields, [59]

„ of Mississippi basin, Sir Charles Lyell on, [44]

„ of Pendle Range, [60]

„ of Pentlands, [59]

„ of river basins, [41]

„ of South of Scotland, [55]

„ of Wales, [59]

„ Prof. Haughton’s method of estimating its rate, [50]

„ Rotation of the earth in relation to, [46]

„ the direct method of estimating its rate, [52]