The isthmus, or neck of the city, is now confounded with the continent; the harbor is a dry plain; and the lake, or stagnum, no more than a morass, with six or seven feet water in the mid-channel.

See D'Anville, (Geographie Ancienne, tom.iii.p.

82,) Shaw, (Travels, p.

77--84,) Marmol, (Description de l'Afrique, tom.ii.p.

465,) and Thuanus, (lviii.