2.
At Cette, by a canal of a few hundred _toises_, leading out of the Etang
de Thau into the sea. The vessels pass the Etang, though a length of
nine thousand _toises_, with sails. 3. At Agde, by the river Eraut,
twenty-five hundred _toises_. It has but five or six _pieds_ of water
at its mouth. It is joined to the canal at the upper part of this
communication, by a branch of a canal two hundred and seventy _toises_
long. 4. At Narbonne, by a canal they are now opening, which leads from
the great canal near the aqueduct of the river Cesse, twenty-six hundred
_toises_, into the Aude. This new canal will have five lock-basins,
of about twelve _pieds_ fall each. Then you are to cross the Aude very
obliquely, and descend a branch of it six thousand _toises_, through
four lock-basins to Narbonne, and from Narbonne down the same branch,
twelve hundred _toises_ into the _Etang de Sigen_, across that Etang
four thousand _toises_, issuing at an inlet, called _Grau de la
Nouvelle_, into the Gulf of Lyons. But only vessels of thirty or forty
tons can enter this inlet. Of these four communications, that of Cette
only leads to a deep sea-port, because the exit is there by a canal, and
not a river.
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