5G

HISTORY OF ENGINEERING.

Chai-. III.

■SCALE or JF MILC

m \

Fig. 61.

MYNDtS.

Palermo. This harbour is very much exposed to the swell of the sea from the north-east;and the anchorage for ships is dangerous when the wind blows from the west. In former

»^T CALITA

ifr office

Fig. 62.

PALERMO.

times the harbour was composed of two long creeks, about 150 feet in breadth, whichextended into the city, and was enclosed towards the sea by a boom; but about 1550 itbecame so silted up that it was built over. The Phoenicians , the Greeks, the Romans, andNormans have all contributed to form this beautiful harbour, which is now shut in by Port