The city has also a large trade in cotton, the annual receipts averaging about ioo,000 bales.
In the same period Spain received exports from France averaging 4,700,000.
The first ledge rising from the ocean floor has depth averaging 8000 ft.
Round the Australian Bight it continues parallel to the coast, until south of Spencer Gulf (the basal ledge still averaging 8000 ft.
West of Port Phillip the fall is less, averaging 20 in.