The return of vessels belonging to the Mercantile Steam Marine of Great Britain, made by the Commissioners on the Report of steam-vessel accidents in 1839, is, number of vessels, 810; tonnage, 157,840; horse power, 63,250.

Mr Levi Woodbury’s Report to Congress in December, 1838, states the number of American steam vessels to be 800, and the tonnage to be 155,473; horse power, 57,019.

It is but fair to state, that the Americans have the credit of having sent the first steam vessel across the Atlantic. In 1819, a steam vessel, built at New York, crossed from Savannah to Liverpool in twenty-six days.

The number of sea-going steam vessels in England is two hundred and eighty-two, while in the United States they have not more than ten at the outside calculation. In the size of our vessels also we are far superior to them. I here insert a table, shewing the dimensions of our largest vessels, as given in the Report to the House of Commons, and another of the largest American vessels collected from the Report of Mr Levi Woodbury to Congress.

Table shewing some of the Dimensions of the Hull and Machinery of the five largest ships yet built or building.

(Table to be added in a later edition.)

But the point on which we are so vastly superior to the Americans, is in our steam vessels of war. They have but one in the United States, named the Fulton the Second. The following is a list of those belonging to the Government of Great Britain, with their tonnage:—

Tons. Tons. Tons.
Acheron 722 Fearless 165 Myrtle 116
Adder 237 Firebrand 495 Otter 237
Advice 475 Fire Fly 550 Phoenix 809
African 295 Flamer 496 Pigmy 230
Alban 294 Fury 166 Pike 112
Ariel 149 Gleaner 306 Pluto 365
Asp 112 Gorgon 1111 Prospero 244
Avon 361 Hecate 815 Redwing 139
Beaver 128 Hecla 815 Radamanthus 813
Blazer 527 Hermes 716 Salamander 818
Boxer 159 Hydra 818 Shearwater 343
Carron 294 Jasper 230 Spitfire 553
Charon 125 Kite 300 Sprightly 234
Columbia 360 Lightning 296 Strombolo 966
Comet 238 Lucifer 387 Swallow 133
Confiance 295 Medea 835 Tartarus 523
Cuckoo 234 Medusa 889 Urgent 583
Cyclops 1190 Megaera 717 Vesuvius 966
Dasher 260 Merlin 889 Volcano 720
Dee 704 Messenger 733 Widgeon 164
Doterel 723 Meteor 296 Wildfire 186
Echo 298 Monkey 211 Zephyr 237

Government Steam Vessels Building.

Alecto 799 Lizard 282 Polyphemus 799
Ardent 799 Locust 282 Prometheus 799
Dover Iron Medina 889