In an earlier paper in this magazine it was stated that we were then engaged on a general study of the Yorkshire Dogger. This subject has proved to be so complicated and far-reaching that it is not possible to present all the results in a single paper of any reasonable length. Moreover, as will be seen later, owing to noteworthy local changes in lithology of the Dogger and to its stratigraphical relations certain very definite types can be recognized, characteristic of large and well-marked areas. This feature lends itself readily to serial publication and the present paper deals with the most accessible, if not perhaps the most interesting area, namely the coast from Peak (Ravenscar) to Saltburn. This part of the outcrop is referred to for convenience as the coastal Dogger.