Sir Robert John Le Mesnrier Mcclure, a British navigator, born in Wexford, Ireland, Jan. 28, 1807, died in London, Oct, 14, 1873. He was the son of an officer, and through the influence of Gen. Le Mesurier he was educated at Eton and Sandhurst. He served as midshipman several years, and his zeal during his first arctic voyage under Capt. Back was rewarded by a lieutenancy. In 1848 he accompanied the Franklin expedition of Sir John Ross. In the years 1850-,54 he led the crew of her majesty's ship Investigator by vessel and sledge across the great ice-encumbered sea, from the Pacific to the Atlantic, via Banks land and Melville island, being finally delivered by McClintock and Kellett, of Belcher's expedition, and thus achieving what is known as a northwest passage. Ladv Franklin, however, in a letter to the London "Times," Oct. 28, 1873, claims for Sir John Franklin the honor of having been the first to discover the northwest passage, during his last expedition. (See Arctic Discovery.) McClure was made captain and a baronet, and parliament voted to him a sum of £5,000. Capt. (since Admiral) Sherard Os-born published from McClure's documents a narrative of " The Discovery of the Northwest Passage" (London, 1856).