We noticed in the last _International_, the decease of Professor Pattison and Dr. Kearney Rodgers, two of the most eminent physicians and surgeons of New-York. Their deaths were succeeded in a few days by those of Dr. J. E. DE KAY (a brother of the late Commodore De Kay), and Dr. MANLEY. Dr. De Kay was eminent as a naturalist and as an author. He wrote a brace of volumes about Turkey, many years ago, which were published by the Harpers, and two of the quarto volumes of the Natural History of the State of New-York, published by the Government. He was intimate with Cooper, Irving, Halleck, Paulding, Dr. Francis, and all the old set of _litterateurs_ in the city. Dr. Manley (father of the distinguished authoress, Mrs. Emma C. Embury), was known at the beginning of this century, for certain political relations, for his connection with Thomas Paine in the last days of that famous infidel, and ever since as a conspicuous physician and high-toned gentleman--foremost especially in all proceedings which had the special stamp of _New-York_ upon them, but not at all inclined to second any movement originating in New England. He had lately accompanied his accomplished and distinguished daughter to Paris, for the benefit of her health, which has suffered for three or four years. Ernest, King of Hanover, died at his palace at Herrenhausen, on the 11th of November. The deceased prince--the fifth and last surviving son of George the Third, was born at Kew, on the 5th of June, 1771. In 1786, he accompanied his brothers, the Dukes of Sussex and Cambridge, to the University of Gottingen. In 1790, he entered the army, and served in the 9th Hanoverian Light Dragoons from that period until 1793, when he obtained the command of the Regiment. During the following year he took an active part in the war which raged on the continent, and in a rencontre near Toumay lost an eye, and was wounded in the arm. In 1799, he was created Duke of Cumberland, Earl of Armagh, and Duke of Teviotdale, with a Parliamentary grant of L12,000 per annum. In the latter part of 1807, he joined the Prussian army, engaged in the struggle against the encroaching power of Napoleon. On the defeat of the French by the allied forces, he proceeded to Hanover, and took possession of that kingdom on behalf of the English crown. In 1810, when the Regency question formed the subject of much public excitement, he entered into its discussion, and vehemently opposed the government on every point, as he opposed the claims of the Roman Catholics, the repeal of the Test and Corporation Acts, and the Reform Bill. He uniformly supported in Parliament the opinions which guided the Pitt, Perceval, and Liverpool Administrations; while he was a warm patron of the Brunswick Clubs, and also held the office of Grand Master of the Orangemen of Ireland. In reference to his transactions with this body, many reports were circulated, imputing to him political designs and