I am not aware that any geological notice has been taken of the effect of the wind on a flat sandy shore, further than the simple removal of the sand therefrom, and its collection on the sea-margin in the shape of sand dunes.

At the present moment a walk on the shore at Blundellsands has vividly impressed me with the efficacy of this agent—wind—as a denuder.

Though I have frequently observed the phenomenon I am about to describe, after continued gales from the North-West, I never saw it displayed in so uniform a manner as now.