1,115
|Havana, | |
Savannah Steamship Co., |New-York and Savannah, | 4| 4,793
New-York and Charleston St. S.| " " Charleston, | 4| 4,680
Co.,| | |
" " Virginia, | " Norfolk, and Richmond, | 2| 2,371
Philadelphia and Savannah, |Philadelphia and Savannah, | 2| 2,600
Boston and Baltimore, |Boston and Baltimore, | 2| 1,600
Texas Steamship Co., |New-Orleans and Galveston, | 4| 2,400
Southern Steamship Co., | " " Key West, | 2| 1,000
Mexican Steamship Co., | " Tampico and Vera Cruz,| 1| 960
------------------------------+--------------------------------+------+--------

[K] Building another steamer of 2,500 tons for the Brazil line.

[L] These vessels average about 250 horses' power each. Their tonnage
is large, probably 1,200 tons each.

There are several other lines of ocean steamers in Europe; but it is
almost impossible to ascertain anything definite about them. The list
above embraces all of the most important companies of the world. The
lines are continually changing, while the vessels are passing into new
hands almost every week.

PAPER G.

The following official letter from Hon. Horatio King explains itself.

Post-Office Department, }
Washington, Nov. 12, 1857. }

Sir: In answer to your letter of 10th inst., I have to inform you,
that the ocean mail steamship lines now under contract with the
Government for the conveyance of mails, are as follows, namely:

1. The New-York and Liverpool (Collins) Line, performing twenty
round trips per annum, at an annual compensation of $385,000.
Length of route, 3,100 miles.

2. The New-York and Bremen Line, _via_ Southampton, performing
thirteen round trips per annum, for the gross amount of United
States postages, (sea and inland.) Length of route, 3,700 miles.

3. The New-York and Havre Line, _via_ Southampton, performing
thirteen round trips per annum for the gross amount of United
States postages, (sea and inland.) Length of route, 3,270 miles.

4. The New-York, Havana, New-Orleans, and Aspinwall Line,
performing twenty-four round trips per annum, at an annual
compensation of $290,0