isplacement or probably 3,000 tons register.

At 14 miles per hour she burns 113 tons. This is nearly three times as
much as 10 miles per hour. At this speed the steamer would reach
Southampton or Liverpool in 9 days, 12 hours, and 30 minutes,
supposing the distance to be 3,200 miles from New-York, or say 9 days
18-1/2 hours coal-burning time, and would consume an aggregate of
1,104-1/2 tons. As this is but little above the distance from New-York
to Southampton, and under that from Panama to California, and about
the tonnage of the steamers running, the time being within eleven days
generally, it will be seen how large is the cost of running the
steamers of the Pacific Mail Steamship Company, those on the European
routes, and also those between New-York and Aspinwall. As the route of
the Havre and Bremen steamers is much longer, they are compelled to
run slightly slower, or they would be filled up with their own fuel
and power. Taking a Collins steamer of 3,000 tons, which we find in
the line below, and we see that in running 14 miles per hour as they
have frequently done, the consumption would be 128 tons per day, or
1,252 tons for the passage. And yet, one of those steamers could make
12 miles per hour on 80.4 tons per day, or at 11 miles per hour on
61.9, or less than half that used at 14. But pursuing this table we
see that,

At 15 miles per hour she would burn 139 tons, or three and a half
times as much as at 10 miles.

At 16 miles per hour she would burn 169 tons, or precisely eight
times as much as at 8 miles per hour. Here again doubling the speed is
found to be an enormous expense.

At 17 miles per hour she burns 202 tons per day.

At 18 miles per hour the consumption is 240 tons per day.

At 19 miles per hour she burns 283 tons coal per day; and

At 20 miles per hour she burns 329 tons per day. At 20 miles per hour
she would run 480 miles per day, a thing as yet wholly unheard of, and
would consume on the voyage of 6 days and 16 hours, say 6 days and 22
hours, 2,276 tons of coal. It would be clearly impossible for her to
carry her own fuel; as the immense boiler and engine power necessary
to secure this speed would of itself fill a ship of this size, to say
nothing of the fuel which also would nearly fill it. Then, we may
never expect any such ship to attain any such speed as seventeen,
eighteen, or twenty miles per hour on so long a voyage without
recoaling.

Seeing thus the enormous increase in the