Rivers o:f' N orColk. 19 j.s' known as the Blackwater until it unites with the '\-Vhinburgh and Thuxton stream near Hardingham Mills. Its course is about 20 miles to where it enters the limits at Earlham. Its tributaries are. Dyke Beck, which rises in Morley and flows through , Kimberley, , · and Barford; a stream which rises in Great l\Ielton and flows to the main river at l\farlingford; and Bays river which rises between Wymondham and . From Earlham to the Yare divides the county of the city of Norwich from the county of . Two miles south of Norwich, between Lakenham and Trowse, it is joined by the Tas, which, rising in , flows through Tibenham, , Bunwell, , Moulton, , Tharston, Hapton, , , Saxling-·

ham, , Shottesham, , Stoke1 Dunston, and Caistor. Its chief tributaries are streams which 1·ise in Hardwick, Hethel, and Brooke. At Thorpe, a mile .to the east of Norwich, the Yare is joined by the Wensum, and receives a tributary at Strumpshaw, Witton Run, which rises in Little Plumstead. The course of the Y are from Norwich to Yarmouth is 32 miles. Just before it reaches Yarmouth it expands into a spacious tidal lake of 1200 acres, four roiles long and about a mile wide, called Breydon Water. The Yare is navigable for 'wherries' or barges up to Norwich. About eight miles from Yarmouth a ship canal has been cut across the marshes to Lowestoft, in . The BuRE, or North River, rises in Hindolvestone and , and flowing through Thurn­ ing, , Saxthorpe, , Blickling, , , BurghJ Oxnead, Lammas, Buxton, Hautbois, Coltishall, Belaugh, , and , unites with the ANT (which is navigable up to ) at , and with the in Horning Marsh. It then flows through Acle, Stokesby, and Runham, and _unites with the Yare at Breydon. The length of the river is about 46 miles. Its chief tributaries are Aldborough Beck, which rises in and Barningham; King Beck, which rises in Gunton and ; a stream which rises in South Repps; Mermaid's or Man's Beck, which rises in Marsham; a stream which rises in Hevingham; streams which rise in Felthorpe and Horsford; a stream which rises in Hamlington; and the rl'hurne or Hundred Stream. The GLAVEN rises in Hempstead, and flows for about ten miles through Edgefield, , , Letheringsett, Bayfield, Glandford, and '\-Viveton; to Cley. A stream which rises at Gun­ thorpe joins the Ghwen at Thornage. The or THUR rises in Fulmodestone, and runs for about 18 miles through , , , Thorpland, Ea&t Barsham, , Houghton-in-the-Dale, New 'Valsingham, and at Old unites with the stream, whence it proceeds through to Stiffkey, where it enters the sea. The Hillington or Babingley river, 9 miles long, flows from :Flitcham through Hillington and Castle Rising to the 'Vash. The NAR rises at Mileham and flows for about 20 miles through Litcham, Lexham, Newton, Castleacre, Southacre, Westacre, Narford, Narborough, Pentney, and Wormegay, to Setch, where it joins the Eau Brink Cut. This river was made navigable for small craft up to Narborough, under an Act · passed in the 24th Gecrge II. '.rhe Wissey, or Stoke River, which is navigable, originates in East Bradenham and Scoulton, and receives several small streams rising in N ecton, Holme Hall, Mm-ton, Cockley Cley, and Stradsett. It flows westward to Stoke Ferry, and enters the Ouse above Denver Sluice. The extreme west of the county is skirted by the river WELNEY, the Wisbech Canal, and the NENE, the latter falling into the Cross Keys Wash on the borders of Lincolnshire. Several small cuts from the navigable rivers have been made in various directions, serving the double purpose of drains and canals. , fresh-water lakes, varying in size and depth, are remarkable features of Norfolk scenery. They abound in the alluvial plains through which the Bure, Yare, and Waveney run to the t;€3; and nre, in fact, frequently little more than expansions of those streams over large areas o£ the valleys. Ormesby Broads, connected wit~ the Bure by Muck Fleet, which is not navigable, consist of seven sheets of water intersected by two causeways. 'fhey contain 700 acres of water which, in the group of Ormesby Broads, is so pure that the population of Yarmouth, Southtown, and Gorleston (in Suffolk) are supplied from them. The seven :sheets of water forming these Broads are named as follows: (1) The Old Burgh Broad; (2) The Filby and Burgh Broad; (3) The Filby Broad; (4) The Waterlily Broad; (5) Rollesby and Ormesby Broad; (6) The Waterworks Broad; (7) The Hemsby and Martham Broad. The Thurne river drains the water from five Broads, viz. Hickling Great Broad, 500 acres; Horsey Mere, 120 acres; Martham Broad, 70 acres; Heigham Sound, 150 acres; and Whiteslea Mere, 15 acres. The Ant drains Barton Broad, a noble sheet of water, and several other small broads, altogether over 300 acres. and Upton Broads are drained by the Bure, so also are Broad, 150 acres; Hoveton Small Broads, about 80 acres; Hoveton Great Broad, 123 acres; Broads, 40 acres; BToads, and Wroxham Broads, about 200 acres. Alongside the Yare are ' and Rockland Broads, containing nearly 130 acres. There are no broads on the Wensum. Only two large broads are drained hy the W aveney, Fritton Decoy or Lake, 500 acres, and Oulton Broad, but these are in Suffolk. The late Mr. Frank Buckland, in his 'Report on the Fisheries of Norfolk,' says, ' Thus it will be seen that in the coWJties of Norfolk and Suffolk there exists a magnificent chain of inland lakes containing nearly 5000 B2 •