THREE:While an impulse was thus given to the mathematical theory of light in the University of Cambridge, similar progress was being made in the sister University of Dublin, where three of her most eminent professorsSir William Rowan Hamilton, Dr. Lloyd, and Mr. M'Cullaghdevoted themselves energetically to its improvement and verification. Sir William Hamilton, a geometer of the first order, having undertaken a more complete discussion of the wave surface of Fresnel, to the equation of which he gave a more elegant form, ascertained the exact nature of that surface, and consequently the exact direction of refracted rays in the neighbourhood of the optic axes. The beautiful and unexpected results he obtained were verified by his friend Dr. Lloyd. The names of Sir William R. Hamilton and Dr. Lloyd will be handed down to posterity in connection with this discovery. "But," says Professor Forbes, "they have other claims to our respect. The former has generalised the most complicated cases of common geometrical optics, by a peculiar analysis developed in his essays on 'Systems of Rays.' To Dr. Lloyd we are indebted for several interesting experimental papers on optics, for an impartial review of the progress of the science, and for an excellent elementary treatise on the wave theory."
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THREE:But the great glory of this session was not the exposure of Davison and his fellow thieves, but the stop put to the operations of a much larger class of rascals. The death of Fox had been a sad blow to Wilberforce and the abolitionists, who had calculated on his carrying the prohibition of the slave trade; but Lord Grenville and his Cabinet seemed to have made up their minds to have the fame of achieving the grand object of so many years' exertion for the suppression of the African slave trade. Wilberforce, to his inconceivable joy, discovered that Spencer Perceval, the leader of the Opposition, and his party were willing to co-operate for this purpose. The king and royal family alone remained as adverse to the abolition of slavery as they were to the emancipation of the Catholics. The abolitionists, however, had so imbued the country with the sense of the barbarity and iniquity of the traffic, that royal prejudice could no longer swamp the measure, nor aristocratic apathy delay it. Lord Grenville brought in a Bill for the purpose into[532] the Peers on the 2nd of January, 1807: the 12th was fixed for the second reading. Before this took place, counsel was heard at the bar of the House against the measure, who repeated all the terrible prognostics of ruin to the West Indies and to Britain from the abolition, with which the planters and proprietors of the West Indies, the merchants and slave captains of Liverpool and Bristol, had so often endeavoured to alarm the nation. The emptiness of these bugbears had, however, been now too fully exposed to the people by the lectures, speeches, and pamphlets of the Abolition Society, and Wilberforce had all along merely to use the arguments in Parliament with which they had abundantly furnished him. Lord Grenville now introduced the second reading by an elaborate speech, in which he condensed and summed up these arguments. He was warmly supported by the Duke of Gloucestera liberal exception to his familyby Lords King, Selkirk, Rosslyn, Northesk, Holland, Suffolk, Moira, and the Bishops of Durham, London, and others. The Dukes of Clarence and Sussex as zealously opposed him, as well as Lords Sidmouth, Eldon, Ellenborough, Hawkesbury, St. Vincent, and many others. The second reading was carried, after a debate which continued till five o'clock in the morning, by one hundred against thirty-six. The third reading was also carried with equal ease, and the Bill was brought down to the Commons on the 10th of February. Lord Howick proposed its reading in an eloquent speech, and it was opposed, with the usual prediction of ruin, by Mr. George Hibbert, Captain Herbert, and General Gascoyne, who said the nation was carried away by sentimental cant, the result of an enormous agitation by the Quakers and Saints. The first reading, however, passed without a division, and the second on the 24th of February, by two hundred and eighty-three against sixteen. The House gave three cheers. Seeing the large majority, and that the Bill was safe, Lord Grenville recommended Wilberforce to strengthen it by inserting the penalties, which he did; but they left a great advantage to the slave merchants by allowing them to clear out their vessels from Great Britain by the 1st of May, and gave them time to deliver their human cargoes in the West Indies till the 1st of January, 1808a liberty which was sure to create a great sending out of vessels for the last occasion, and a fearful crowding of them. However, the accursed trade was now doomed, as far as British merchants could go, though it was soon found that it was not so easy to suppress it. When it was seen that the Bill must pass, Lords Eldon, Hawkesbury, and Castlereagh, who had hitherto opposed it, declared themselves in favour of it. It was carried in both Houses by large majorities, and received the royal sanction on the 25th of March. So easily was the Bill passed, at last, that Lord Percy, the day after it had left the Commons, moved in that House for leave to bring in a Bill for the gradual emancipation of the slaves; but this being deemed premature, and calculated to injure the operation of the Bill for the abolition of the trade, and to create dangerous excitement in the West Indies, the motion was discouraged, and so was dropped.
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