362

HISTORY OF ENGINEERING.

Rook

PLATTE

ttlAC

ymys

RRrs

KEY SHORE.

IP . pehrho’s

Fig. 364.

HOLYHEAD HAKUOl'R.

Towards the south is another pier, and within is a wet dock, containing upwards of 22acres, with a depth of water of 19 feet To the south of the port, on the rocks, stands onelighthouse, and another is placed at the head of the mole.

Alterysticith has a small port, and in the neighbourhood are extensive lead mines, whichafford employment to the shipping.

Milford. Haven , surrounded by lofty mountains, penetrates far inland, and has sufficientdepth of water for the largest vessels of war. At Pembroke is an arsenal.

Swansea, an excellent seaport, formed by the construction of moles, by Captain Huddart,is situated on the western side of the river Tawe.

Cardiff is a port at the mouth of the TafT, about three miles from llumney Rridge, andthe town was once surrounded by thick and lofty walls. The new cut to the quays admits