[Footnote 13: In order to replace the original capital, 10 per cent. or 50,000_l._ yearly laid aside as a sinking fund, is quite sufficient, thus:-- Principal. Interest. 1st year L50,000 0 0 2d do. 50,000 0 0 L2,500 0 0 3d do. 50,000 0 0 5,125 0 0 4th do. 50,000 0 0 7,881 5 0 5th do. 50,000 0 0 10,775 6 0 6th do. 50,000 0 0 13,814 0 6 7th do. 50,000 0 0 17,004 19 0 8th do. 50,000 0 0 20,335 0 6 9th do. 50,000 0 0 23,872 15 6 10th do. 50,000 0 0 27,566 8 7 --------------- -------------- Capital 500,000 0 0 128,888 14 9 Interest 128,888 14 9 ---------------- Total L628,888 14 9 ---------------- A similar sum (see Appendix, No. 1.) of at least 600_l._ per annum, each, ought to be charged as the capital necessary to replace the sailing-packets.] As regards the Post-office revenue, it is impossible, in the absence of full official returns, to state its present exact amount, and, consequently, the probable future increase. The revenue from the outward postages to the British West Indian Colonies, Honduras excepted, is inserted in the Appendix from official authority. Judging from it, and other data, also adduced from official authority, the present amount there stated cannot be far wrong; and the calculated increase under the arrangements proposed, every circumstance considered, is fair and reasonable. Besides the certain great increase in all the external postages in these countries and colonies and places, the internal and coasting postages in these places will be augmented to a very great extent. Taking the outward postages at present to be, to all the places mentioned, 100,000_l._--inwards as much, 200,000_l._--there may be added, Additions 100,000_l._; (p. 054) Increase 70,000_l._; total 370,000_l._; viz., outwards 185,000_l._, and inwards as much; giving at the average postage of 2_s._ 5_d._ the number of letters each way to be 1,531,465.