"The sea is pushed or is drawn away, the topography is slightly rejuvenated, streams become active and channel the great sea flats. The sea again invades the stream unload in the underground their loads of sand and the marine deposits may come to lay over all or the sea may sink before the cycle is completed. Or in the latter case the sandstone may again be channelled or go run into structureless clay and coal deposits. Each cycle would be different in its intensity and thus greatly vary the depositional succession. Raymond says he has seen no fossils on sorts in the yellowish structureless clay. It has many small eruptions, then is much sliding side by on a small scale and diagonal fracturing. The latter is only seen on weather surfaces, and is probably due to creeping causing a false appearance of folding. In West Virginia marine fossils occur in the coal measures immediately above the