The basins of the Parana and Paraguay are separated by low mountain ranges extending north from the sierras of Paraguay.
This mountainous tract, which has an average breadth of from 50 to 60 m., is bounded west by the plain of Campania, now called the Terra di Lavoro, and east by the much broader and more extensive tract of Apulia or Puglia, composed partly of level plains, but for the most part of undulating downs, contrasting strongly with the mountain ranges of the Apennines, which rise abruptly above them.
There are about 320 officers in active service, and the total personnel ranges from 5000 to 6000 men.
Malt, tinware, flour and grist-mill products, boilers, stoves and ranges, optical supplies, wall-paper, cereals, canned goods, cutlery, tin cans and wagons are manufactured, and there are also extensive nurseries.
There is no other instance in Europe of a basin of similar extent equally clearly characterized—the perfectly level character of the plain being as striking as the boldness with which the lower slopes of the mountain ranges begin to rise on each side of it.