(1.) Additional example of Diluvial Scratches on the Rocks in the neighbourhood of Edinburgh.

The author stated that, recently, an opportunity had presented itself of observing, at a newly-opened sandstone quarry, dressed and scratched surfaces, at an elevation above the level of the sea greater than any examples of the same kind of diluvial action as yet recorded, as occurring in the neighbourhood. The locality is eastward of the east Cairn Hill, in the Pentland Hills, at a place termed “Thomson's Walls,” and its elevation, according to Knox's map of Mid-Lothian, is 1400 feet.