In the estimate for the cost of steam-boats to be employed in the service proposed, I have been chiefly guided by, and adhere to, the statement made by that able and practical engineer Mr. Napier, of Glasgow, in his evidence to the Post-office Commissioners in 1836, that steam-boats of 240-horse power, and 620 tons burthen, could be furnished at from 24,000_l._ to 25,000_l._ At this rate the total yearly cost of mail communications by the aid of steam, to every quarter which has been adverted to in the subsequent pages, will (p. vii) be as stated in the following brief summary. Reference No. 1, shows the expenditure, keeping the Red Sea route confined to India only, and extending the communication to China and Sydney by the Pacific, from Panama or Rialejo. No. 2, the expense, confining the communication by the Cape of Good Hope to India only, and extending the communication to Canton, &c. across the Pacific as before. No. 3, shows the expenditure for the Western World, the work performed by steam in the West Indies, and steam from Falmouth to Fayal, with sailing-packets for the remainder of the work; and the whole expense, by extending sailing-packets to China and Sydney westward across the Pacific, but limiting the communication by the Red Sea to India only. Lastly, No. 4, shows the expenditure of the communications made in a way similar to No. 3, limiting the conveyance by the Cape of Good Hope to India only: (see also Appendix No. 2, p. 128.) No. 1. No. 2. No. 3. No. 4. Western World L279,250 L279,250 L161,615 L161,615 East Indies, &c. 128,850 187,978 128,850 187,978 Pacific 63,000 63,000 63,000 63,000 -------- -------- -------- -------- L471,100 L530,228 L353,465 L412,593 -------- -------- -------- -------- It is, however, to that portion connected with the Western World that the immediate and particular attention of yourself and the other members of Her Majesty's Government is particularly requested. The other parts, above alluded to, may hereafter not be deemed (p. viii) unworthy of your consideration, and the consideration of the Public. Carried into effect in a decided manner, and as speedily as the nature and extent of the machinery required will admit, it would produce great and lasting advantages to the British empire, and confer great honour upon the British Government and the splendid Post-office establishment of this country.