Tweed, the noblest of Scottish rivers, rises far up in Peeblesshire at Tweed's Well, 1500 feet above sea-level, and flows 97 miles NE., E., and again NE. through or along the boundaries of Peeblesshire, Selkirkshire, Roxburghshire, Berwickshire, and Northumberland, till it falls into the German Ocean at Berwick-on-Tweed. It receives the Gala, Ettrick (itself fed by Yarrow), Leader, Teviot, Till, and Whitadder; is tidal for 10 miles, but almost quite unnavigable; and traces the English border for only 18 1/2 miles, so that ' North of the Tweed' is a none too accurate phrase. It is famous for its salmon-fisheries, but more famous far for its memories: ' Which of the world's streams,' asks George Borrow, 'can Tweed envy, with its beauty and renown?' For it flows by Neidpath, Peebles, Traquair, Ashie-stiel, Abbotsford, Melrose, the Eildons, Bemer-syde, Dryburgh, Kelso, Coldstream, and Norham Castle. Merlin, Thomas of Ercildoune, and Michael Scott - the Tweed has dim legends of these; and its ripple was the last sound heard by a fourth and a mightier wizard than them all, Sir Walter. See Lauder's Scottish Rivers (new ed. 1890); and Veitch's River Tweed (1884).