The principal industries include paper-making, brewing, the making of nets and twine, bricks, tiles and pottery, tanning and oil-refining, besides saltworks and seed-crushing works.
The rise of the mineral saltworks of Cheshire led to its decline in the 18th century, and later the renewed importance of Southampton completed its decay.
A few minerals are found in the district, but in this department the saltworks of Hall, near Innsbruck, take the first place.
Other suburbs were situated at the harbour and at the saltworks (salinae).
There are considerable saltworks at Augusta.
Is the Porto Clementino (perhaps the ancient Graviscae, the port of Tarquinii), with government saltworks, in which convicts are employed.