This State is known to be rich in minerals, although a large portion remains yet unexplored. Lead has been found in abundance. The principal "diggings" are included in a district fifteen miles by thirty in extent; the centre of which is sixty miles southwest from St. Louis, and about half that distance from Herculaneum, on the Mississippi. The earth is of a reddish yellow, and the ore is found embedded in rock and hard gravel. Fifty diggings are now occupied, from which three millions of pounds of lead are annually sent to market. It is transported from the mines in wagons, either to Herculaneum or St. Genevieve, and from thence by water to New-Orleans. Stone coal abounds, especially in the region of St. Louis and St. Charles. Plaster, pipe clay, manganese, zinc, antimony, red and white chalk, ochres, flint, common salt, nitre, plumbago, porphyry, jasper, porcelain clay, iron, marble and the blue limestone of an excellent quality for lime, have already been discovered in this State. Iron, lead, plaster and coal are known to exist in inexhaustible quantities.

St. Louis is much the largest town in the State. It is not only the most pleasantly situated, but has the most favorable location for trade of any town on the Mississippi above New-Orleans. It has, however, been sufficiently described.

St. Genevieve is situated about a mile west of the Mississippi on the upper extremity of a beautiful prairie. It is principally settled by the French and contains about fifteen hundred inhabitants. It is an old town, and has not increased for the last thirty years.

Jackson, the seat of justice for Cape Girardeau county, is twelve miles west of the Mississippi, contains one hundred houses, some of them built of brick and handsome.

The town of Cape Girardeau is situated on a high bluff of the Mississippi, fifty miles above the mouth of the Ohio. It has a fine harbor for boats, and commands an extensive view of the river above and below. It exhibits marks of decay.

Potosi is the county town of Washington. It is situated in the centre of the mining district, in a pleasant valley sixty-five miles southwest from St. Louis. St Michael is an old French town among the mines. There are some other small villages in the vicinity of the mining district.

Herculaneum is situated among the high bluffs of the river, thirty miles below St. Louis. There are a number of shot towers in its vicinity. New-Madrid is fifty miles below the mouth of the Ohio. Carondolet is a small French village six miles below St. Louis; and four miles below this, is the garrison, called Jefferson Barracks. The public buildings are extensive, and a large number of soldiers are generally stationed here. There are no large villages on the Mississippi above the mouth of the Missouri. Palmyra is probably as large as any. The others are Louisianaville, Troy and Petersburg.

There are a number of fine villages on the banks of the Missouri; the largest of which is St. Charles, twenty miles from the mouth, and just the same distance from St. Louis by land. It is situated on a high bank of solid limestone, has one street of good brick houses; and in its rear, an extensive elevated prairie. It contains a protestant and a catholic church, was once the seat of government, and numbers twelve hundred inhabitants; a third of whom are French. It has finely cultivated farms in its neighborhood, and has as interesting scenery as any village in the western country.

Jefferson City is the present seat of government, but being thought to be an unfavorable location has not improved as was expected. It is situated on the south bank of the Missouri, nine miles above the mouth of the Osage river, and one hundred and fifty-four by water from St. Louis. Fifty miles above this, is the town of Franklin. It is situated on the north bank of the river, contains two hundred houses and one thousand inhabitants. It is surrounded by the largest body of rich land in the State; and is the centre of fine farms and rich farmers. Boonville is on the opposite bank of the river and was originally settled by Col. Boone, the patriarch of Kentucky. Bluffton, two hundred and twenty-nine miles by water from St. Louis, is the last village within the limits of this State.