On the arrival of the steamer at Havannah another steamer should be despatched with the outward mails for Tampico and Vera Cruz, and from thence return to Havannah with the return British and Colonial mails. The course of this boat would be,--to Vera Cruz, 800 miles, three and a half days; to Tampico and back, 360 miles, stopping two days, four days; Vera Cruz, back to Havannah, five and a half days; in all, thirteen days. The route of the mail conveyance from Barbadoes to Jamaica, &c., by steamers, would therefore be:-- Geo. Miles. Days. Barbadoes to St. Thomas 430 2 St. Thomas to Jamaica, by Porto Rico, Cape Nichola, and St. Jago de Cuba 780 3-1/2 Jamaica to Havannah, by Cape Antonio 685 3 Stop at Havannah 2 Havannah to Jamaica, by Cape Antonio 685 4 Jamaica, Coals 1 Kingston to Cape Nichola Mole, by St. Jago 305 2 Cape Nichola Mole to St. Thomas, by P. Rico 480 3 St. Thomas, Coals 1 St. Thomas to Barbadoes, calling at all Islands 500 4 ---- ------ Totals 3865 25-1/2 ---- ------ Each steam-boat being thus twenty-two days, each trip, at sea. (p. 039) Two powerful boats (240 or 250-horse power each), actively employed, carrying passengers, parcels, and packages, would do this work twice each month, with the addition of one spare one stationed at Barbadoes, or Jamaica; perhaps the former. 2.--_Windward Station._ One powerful steam-boat (240-horse power) to leave Barbadoes immediately on the arrival of the outward British packet, for Demerara and Berbice, with the British and Colonial mails, and from the latter return to Barbadoes, having first carried the return mails to the packet at Grenada; thus:--Barbadoes to Berbice, 450 miles, landing mail at Demerara, three days; (the mail for Berbice might be forwarded from George Town, Demerara, by land;) stop at Berbice two days; to Grenada, calling at Demerara, Tobago, and St. Vincent's, for return mail, 490 miles, four days; back to Barbadoes, 150 miles, two days; in all, eleven days: taking with her the return mails from the Colonies at which she had called for Barbadoes, and having delivered the return European mails, and others, to the packet at Grenada.