The Santa Monica Mountains of southern California are far too low to have been glaciated, but the features of their south-facing coast are believed to record four epochs of sea rise and abrasional advance alternating with three epochs of sea lowering and withdrawal during intermittent coastal upheaval; and these seven epochs of high and low sea level are interpreted as representing the last four Nonglacial Epochs (including the present Postglacial) and the last three Glacial Epochs of the Quaternary Glacial Period.


The following pages present the results gained in company with a number of my friends on twenty or more visits to a 30-mile stretch of the Southern Californian coast during the last six years. Various aspects of the problems there encountered have been profitably discussed on the ground with Prof. J. E. Wolff, my former colleague at Harvard University, now resident in Pasadena; with my former student, . . .

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