[7] |476,500|128,600|108,000| |132,900|272,850 | 19 | 13
Sub. |335,500|115,000| 38,400| | 45,900|168,500 | 8 | 26
|-------+-------+-------| |-------+--------+------+-------
Diff. |141,000| 13,600| 69,600| | 87,000|104,350 | 11 | 13
--------+-------+-------+-------+--------+-------+--------+------+-------

N.B.--The latter sum shows the difference of capital and expenditure
betwixt the work done by steam, and partly by steam and partly by
sailing packets. The reduction in coals by the preceding estimate will
be 33,250_l._; and, allowing 10 per cent. wastage on the _whole
quantity_, the real reduction in the expenditure will be 20,000_l._

[Footnote 7: The cost of these steamers will, to a
considerable degree, depend on the tonnage which it
is considered most proper to adopt. The utmost
quantity of coals which any of them will require to
carry, will be (Fayal to Barbadoes, and Fayal to
Pernambuco) 300 tons. Airy accommodation for from
fifty to sixty cabin passengers, and twenty-five to
thirty steerage ditto, with the crew, will be all
that is requisite, leaving a room for specie and
the mails, and space for from forty to one hundred
tons of goods. Since the present calculation was
made, the price of machinery has risen
considerably. Boats of the size necessary may now,
perhaps, cost 28,000_l._ to 29,000_l._ In the
latter case, 750_l._ per annum (five per cent.
insurance, five per cent. interest, and five per
cent. ordinary tear and wear) must be added to the
yearly outlay, as here stated. The wages and
provisions will remain the same. Iron boats can be
had _one-fourth_ cheaper than those built of wood;
moreover, engines now made on the EXPANSIVE system,
require fully one-third fewer coals, by which so
much expense will be saved.]

_Cost, partly by Steamers and partly by Sailing Packets_. (p. 046)

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