The Paper “On the Formation of the Chesil Bank,” which appeared in the GEOLOGICAL MAGAZINE for October last, is prefaced by a statement that the authors (Messrs. Bristow and Whitaker) do not propose to enter into the question of the way in which the shingle was heaped up. But the way in which the shingle was heaped up is intimately connected both with the formation of the Chesil Bank and with its position in advance of the shore line, and, if rightly understood, any speculations on the waste of the coast behind the bank by sub-aerial denudation are superfluous.