"This in large part derived from Devonian geology" at maximum elevation. The coast and into this shallow sea was deposited the lead sand making the Manawatu Upper The cycle is now begun and the sea while not constantly advancing upon the Blue Ridges was at first filled up more quickly than subsidence took place and so the first deposits of the Redwood give evidence of just sea marsh flats in which our deposited red deposits, which at times were reared to the sun and cracked. Plenty witness- dence set in but at no time in the Diluvium was the Cumberland gulf a normal sea with an abundance of life. All through the Diluvium along the eastern shore the sea was muddy and not well adapted to an abundance of life. While this elevation was going on, begun in the Utica and dissolving the sea from this region towards the close of the Lorraine, the sea still existed further west. Here also due to elevation the sea was shallower than before and the detritus of the elevating land - a mud - was being carried out by the constantly elongating rivers during Richmond time making the deposits known as the Medina - the Red Medina only. While these deposits are not continental yet they are the sands of rivers in a shallow sea one are therefore not affected.