The number of arrivals of steamers at Cincinnati for the year was

2,509.

Tonnage and value of commerce of Cincinnati for fiscal year.

Total....... 886,990 84,981, 557 528, 110 58,294, 949 1,415, 100 143, 276, 506

Comparing this with a similar table for the preceding fiscal year, there will be found an increase of a little over 2 per cent. in the tonnage by river, and of about 17 per cent. by railroad, while there is a decrease of about 15 per cent. by canals.

In addition to the above, there arrived at Cincinnati in flat-boats: Bushels of coal............ 16,000,000 Value.........

$1,600,000

1,650,000

3,500,000

6,750,000

84,981,557

91,731,557

For the subjoined statement of the dutiable value of imports and duties collected thereon at St. Louis I am indebted to Captain W. A. Linn, collector of that port, whose kindness I wish particularly to acknowledge, not only in furnishing all the information in his own. power, but in putting himself to much personal inconvenience assisting me in collecting it elsewhere:

Dutiable value of imports........
Duties collected....

$1,123,478 36 359,754 20

Amount of tonnage of steam vessels enrolled at the port of St. Louis June 30, 1857............

Amount of tonnage of vessels, other than steam, enrolled as above, canal boats, barges, &c.....

44,846 tons.

5,771 "

50,617 "

.....

3,107

The number of steamboat arrivals for the year, as kindly furnished by Mr. John Durack, harbor master, is........... This does not include the packets to Keokuk, Chester, and Alton, whose average the year round would be fully 75 per month, or........

Total arrivals

900

4,007

According to Mr. Durack, there arrived during the year in St. Louis, from ports above, 300 barges, of an average of 100 tons burden, and 120 canal boats of 85 tons each, laden principally with grain and lumber.

The table below, which is compiled from a pamphlet entitled "An Annual Review of the Commerce of St. Louis," published at the office of the "Missouri Republican," shows the amount of receipts of some of the principle articles of commerce for the year 1856.

Bbls. flour. Sacks wheat. Sacks corn. Bbls. whisk. Sacks oats. Pigs lead.

The following is believed to be a reliable statement of the navigable lengths of the principal western rivers. As before stated, to give an accurate yearly estimate in detail of the amount and value of the tonnage and commerce of these rivers would, probably, occupy the undivided attention of a single individual.

Making an aggregate length of 8,719 miles. Besides which there are many other streams of greater or less navigable length, constituting in all a distance upon the western waters susceptible of steam navigation of not less than 12,000 miles.

The subjoined tables exhibit sundry lines of conveyance by rivers and canals, in navigable stages, and by railroads, when passable; and show the distances between commercial points, the duration of transit from point to point, and the average charge for conveyance of freights per ton net, and of passengers per individual through these distances-the charge for the latter covering personal transportation only.