From Great Britain we have no political news of importance. The royal family were still in the north. The whig politicians appear to be agitating new schemes of parliamentary reform, and several distinguished persons have recently made addresses to their constituents. Sir Edward Bulwer Lytton is before his county as a protectionist candidate for the House of Commons, with fair prospects. The submarine telegraph to France has been completed. The great cable which was intended to reach the whole distance proved too short by half a mile, owing to the irregularity of the line in which it was laid down. It was pieced out with a coil of wire coated with gutta percha. This will, however, have to be taken up and supplied with cable. The connection is complete with France, and messages are sent across with perfect success. Mr. Lawrence, the American minister, having gone to Ireland, for the purpose of seeing the scenery of the country, has been embarrassed with honors; public addresses have been presented to him, banquets given to him, railway directors and commissioners of harbors have attended him in his journeys, a steamboat was specially fitted up to carry him down the Shannon, and in every way such demonstrations of interest and honor were offered as were suitable for a people's reception of a messenger from the home of their children. The visit of Mr. Lawrence promises some happy results in directing attention to projects for a steam communication directly with the United States. The differences between the government of Calcutta and the court of Hyderabad, have been arranged for the present without any actual confiscation of the Nizam's territory. A considerable sum has been lodged in the hands of the Resident, and security offered for the partial liquidation of the remainder. Moolraj, the ex-Dewan of Mooltan, expired on the 11th August, while on his journey to the fortress of Allahabad, and the Vizier Yar Mohammed Khan, of Herat, died on the 4th of June. The eldest son of the latter, Seyd Mahommed Khan, has succeeded to the throne of Herat. Dost Mohammed is resolved to oppose him, and, for that purpose, has placed his son, Hyder Khan, at the head of a large army, with orders to invade Herat. The Admiralty have advertised for tenders for a monthly mail line of screw-steamers to and from England and the west coast of Africa. The ports to be touched at are Goree, Bathurst, Sierra Leone, Monrovia (Liberia), Cape Coast Castle, Accra, Whydah Badagry, Lagos, Bonny, Old Calabar, Cameroons, and Fernando Po. The whole range of the slave coast will thus be included; and it is understood that the object of the line, which, in the first instance, of course will carry scarcely any passengers or letters, is to promote the extinction of that traffic, not only by cultivating commerce with the natives, but by the rapid and regular information it will convey from point to point. Of the Caffre war, we have