To this should be added:

Insurance, 15% on $7,200,000$1,080,000.
Louisville and Portland Canal tolls—250,000.
Interest on $7,200,000. Investment at 6%432,000.
Wear and tear of boats, 20%1,440,000.
——————
Total$12,238,000.
Add for flat-boats, as above,1,380,000.
——————
Total annual cost of transportation$13,618,000.

There were steadily employed at the Cincinnati shipyards, during the year 1843, in the heavier portions of the work, 320 hands at the boatyards, 200 joiners, 200 engine- and foundry-men, 50 painters, making the total number of persons employed 770.

Within the same year, there were built at Louisville, New Albany, and Jeffersonville, 35 boats, of 7,406 tons, which cost $700,000. These boats cost $20,000 each, averaged 211 tons, and cost about $95 per ton.

At Pittsburg, the same year, there were built 25 boats, of 4347 tons; the average tonnage of these boats was about 173 tons.

The aggregate number of boats built in 1843, is about as follows:

Cincinnati,45 boats,12,035tons
Louisville, New Albany, and Jeffersonville 35 boats, 7,406“
Pittsburg,25 boats,4,347“
Add for all other places,15 boats,3,000“
———
Total.26,788tons

The whole tonnage of western boats previous to 1843, being 90,000 tons, and the annual loss by destruction and superannuation being twenty per cent, the decrease by the latter cause for 1843, was 18,000 tons, and the increase 26,788 tons, making a net increase of 8,788 tons.