About four miles from Marazion, and half a mile from the high road towards the coast, are the remains of a building called _Pengerswick Castle_, a square stone tower, with a smaller one annexed, and some ruins of walls, are all that remain of this ancient edifice, but its machiolated gate and embattled turrets are still preserved to announce its military origin. The different rooms are now converted into granaries, but the oak wainscot, which is curiously carved and painted, remains in a tolerable state of preservation. On one of these panels, under a rude representation of water dropping from a rock, with the title "_Perseverance_," is the following poetical inscription. "What thing is harder than a rock? What softer is than water clear? Yet will the same with often drop The hard rock pierce, which doth appear, Even so there's nothing so hard to attayne But may be had with labour and pain." The classical reader will at once recognise in this inscription a paraphrase of the well known lines of Ovid: "Quid magis est saxo durum,--Quid mollius unda? Dura tamen molli Saxa cavantur Aqua." There exists a tradition that this place belonged in the reign of Henry VIII. to one Milliton, who having slain a man privately, purchased the castle in the name of his son, and immured himself in a secret chamber in the tower. On a bold pile of _Granite rocks_ which projects from the shore near Pengerswick, Dr. Maton observed clusters of _Trochus crassus_, besides some species of _Actinia_ and _Asterias_, not common on other parts of the coast. Pursuing our route we pass through a country principally composed of Slate, the great Granite chain running to the left of the road, and constituting _Tregoning_, _Godolphin_, and _Breage hills_. The Signal house at the top of _Tregoning hill_, which is 584 feet above the sea, constitutes the most elevated point in the country, and from which both channels are visible. The granite of this hill bears in some parts all the appearance of a stratified rock.