Length, 278; medium breadth, 235 miles: containing 64,500 square miles, and containing 41,280,000 acres.

Bounded north by the Des Moines country, or New Purchase, attached to Wisconsin Territory, west by the Indian Territory, south by Arkansas, and east by the Mississippi river. Between 36° and 40° 37' N. latitude, and between 11° 15' and 17° 30' west longitude.

Civil Divisions.—It is divided into 50 counties, as follows:—Barry, Benton, Boone, Callaway, Cape Girardeau, Carroll, Chaviton, Clay, Clinton, Cole, Cooper, Crawford, Franklin, Gasconade, Green, Howard, Jackson, Jefferson, Johnson, La Fayette, Lewis, Lincoln, Madison, Marion, Munroe, Montgomery, Morgan, New Madrid, Perry, Pettis, Pike, Polk, Pulaski, Randolph, Ralls, Ray, Ripley, Rives, St. Francois, St. Genevieve, St. Charles, St. Louis, Saline, Scott, Shelby, Stoddart, Van Buren, Warren, Washington, and Wayne.

POPULATION AT DIFFERENT PERIODS.

The Constitution is similar to that of Illinois, in its broad features, excepting the holding of slaves is allowed, and the General Assembly has no power to pass laws for the emancipation of slaves, without the consent of their owners, or paying an equivalent. It is made the duty of the General Assembly "to oblige the owners of slaves to treat them with humanity, and to abstain from all injuries to them extending to life or limb." "Slaves shall not be deprived of an impartial trial by jury." In 1832, there were in the State, 32,184 slaves, and 661 free colored persons. Every free white male citizen has the right of suffrage, after a residence in the State of one year.

Surface, Soil and Productions.—The surface of this State is greatly diversified. South of Cape Girardeau, with the exception of some bluffs along the Mississippi, it is entirely alluvial, and a large proportion consists of swamp and inundated lands, the most of which are heavily timbered. From thence to the Missouri river, and westward to the dividing grounds between the waters of the Osage and Gasconade rivers, the country is generally timbered, rolling, and in some parts, quite hilly. No part of Missouri, however, is strictly mountainous. Along the waters of Gasconade and Black rivers the hills are frequently abrupt and rocky, with strips of rich alluvion along the water courses. Much of this region abounds with minerals of various descriptions. Lead, iron, coal, gypsum, manganese, zinc, antimony, cobalt, ochre of various kinds, common salt, nitre, plumbago, porphyry, jasper, chalcedony, buhrstone, marble, and freestone, of various qualities. The lead and iron ore are literally exhaustless, and of the richest quality. To say there is probably iron ore enough in this region to supply the United States with iron for one hundred thousand years to come, would not be extravagant. Here, too, is water power in abundance, rapid streams, with pebbly beds, forests of timber, and exhaustless beds of bituminous coal. The only difficulty of working this vast body of minerals is the inconvenience of getting its proceeds to the Mississippi. The streams that rise in this region, run different courses into the Missouri, the Mississippi, and the Arkansas, but they are too rapid and winding in their courses to afford safe and easy navigation.

Were the rafts now lodged in the St. Francois, removed by the agency of government, as they have been in Red river, the lower section of the mineral country could be reached by steamboat navigation. The citizens of St. Louis, very recently, have entered upon the project of a railway from that city, through the heart of this country, to the fine farming lands in the south-western part of the State. Such a project, carried into effect, would open a boundless field of wealth in Missouri.

The western part of the State is divided into prairie and forest land, much of which is fertile. Along the Osage, it is hilly, and the whole is undulating, and regarded as a healthy region, abounding with good water, salt springs, and limestone. North of the Missouri the face of the country is diversified, with a mixture of timber and prairie. From the Missouri to Salt river, good springs are scarce, and in several counties it is difficult to obtain permanent water by digging wells. Artificial wells, as they may be called, are made by digging a well forty or fifty feet deep, and replenishing it with a current of rain water from the roof of the dwelling house. Much of the prairie land in this part of the State is inferior to the first quality of prairie land in Illinois, as the soil is more clayey, and does not so readily absorb the water. Between Salt river and Des Moines, is a beautiful and rich country of land. The counties of Ralls, Marion, Monroe, Lewis and Shelby, are first rate. The counties of Warren, Montgomery, Callaway, Boone, Howard, and Chaviton, all lying on the north side of the Missouri river, are rolling,—in some places are bluffs and hills, with considerable good prairie, and an abundance of timbered land. Farther west, the proportion of prairie increases to the boundary line, as it does to the northward of Boone, Howard and Chaviton counties. After making ample deductions for inferior soil, ranges of barren hills, and large tracts of swamp, as in the south, the State of Missouri contains a vast proportion of excellent farming land. The people generally are enterprising, hardy and industrious, and most of those who hold slaves, perform labor with them. Emigrants from every State and several countries of Europe, are found here, but the basis of the population is from Kentucky, Tennessee and Virginia. The natural productions of Missouri are similar to those States already described, and the agricultural productions are the same as in Illinois, except that more tobacco is produced in the middle, and considerable quantities of cotton in the southern counties.

Towns.—The city of Jefferson is the political capital of the State. It is situated on the right bank of the Missouri, a few miles above the mouth of the Osage, and about 138 miles from St. Louis. It is a small town, with little business, except what pertains to the government of the State. A state house, governor's house and penitentiary have been erected.

St. Louis is the commercial capital, and the most important place in all this portion of the Valley of the Mississippi. It stands on the western bank of the Mississippi, 180 miles above the junction of the Ohio, 18 miles below that of the Missouri, and 38 miles below that of the Illinois. It is beautifully situated on ascending and elevated ground, which spreads out into an undulating surface to the west for many miles. Two streets are parallel with the river on the first bank, and the rest of the city stands on the second bank; but very little grading is necessary, to give the streets running back from the river, their proper inclination. The old streets, designed only for a French village, are too narrow for public convenience, but a large part of the city has been laid out on a liberal scale. The Indian and Spanish trade, the fur and peltry business, lead, government agencies, army supplies, surveys of government lands, with the regular trade of an extensive interior country, makes St. Louis a place of great business, in proportion to its population, which is about 10,000.

The following, from the register of the wharf master, will exhibit the commerce for 1835:

STEAMBOAT REGISTER.

The proportionate increase of business will be seen by reference to the following registry for 1831:

The morality, intelligence and enterprise of this city is equal to any other in the West, in proportion to its size. The American population is most numerous, but there are many French, Irish and Germans. About one third of the inhabitants are Roman Catholics. The Presbyterians, Methodists, and Episcopalians have large congregations and houses of worship: the Baptists and Unitarians are rather small, and without public edifices. The Roman Catholic cathedral is a costly pile of buildings of freestone, and has a splendid chime of bells, sent over from Europe. St. Louis is a pleasant and healthy situation, and surrounded with a fertile country.

We have not space to give particulars respecting many interesting and flourishing towns in Missouri.

Cape Girardeau is a commercial depot for the southern part of the State. St. Genevieve stands a little back from the river, and is known only as an old French village.

Selma is a landing and depot for the lead mine country, 38 miles below St. Louis.

Clarksville, Hannibal, Saverton, and La Grange are commercial sites on the Mississippi, above the mouth of Missouri. Palmyra is a beautiful town, of about 1,000 inhabitants, and the seat of justice for Marion county. Along the Missouri are Portland, Rocheport, Boonville, Lexington, Independence, and many other places of various degrees of importance. Franklin formerly stood on the north bank of Missouri, but most of it has been removed, three miles interior, to the bluffs. Potosi is a central town, in the mineral district. Fulton, Columbia, and Fayette are the seats of justice for Callaway, Boone, and Howard counties, and are pleasant and flourishing towns.

About the same provision for education has been made in this as in other Western States, and a disposition to encourage schools, academies and colleges is fast increasing.