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 BERM (probably a variant of “brim”), a narrow ledge of ground, generally the level banks of a river. In parts of Egypt the whole area reached by the Nile is included in the berm. Thus of the lands near Berber, Mr C. Dupuis writes (in Sir William Garstin’s Report on the Upper Nile, 1904), “In most places there is a well-defined alluvial berm of recent formation and varying width, up to perhaps a couple of kilometres.” In military phraseology the berm is the space of ground between the base of a rampart and the ditch.

 BERMONDSEY, a south-eastern metropolitan borough of London, England, bounded N. and E. by the Thames, S.E. by Deptford, S.W. by Camberwell, and W. by Southwark. Pop. (1901) 130,760. It is a district of poor streets, inhabited by a labouring population employed in leather and other factories, and in the Surrey Commercial Docks and the wharves bordering the river. The parish of Rotherhithe or Redriff has long been associated with a seafaring population. A tunnel connecting it with the opposite shore of the river was opened in June 1908. The neighbouring Thames Tunnel was opened in 1843, but, as the tolls were insufficient to maintain it, was sold to the East London Railway Company in 1865. The Herold Institute, a branch of the Borough Polytechnic, Southwark, is devoted to instruction in connexion with the leather trade. Southwark Park in the centre of the borough is 63 acres in extent. Bermondsey is in the parliamentary borough of Southwark, including the whole of Rotherhithe and part of the Bermondsey division. The borough council consists of a mayor, 9 aldermen, and 54 councillors. Area 1499·6 acres.

The name appears in Domesday, the suffix designating the former insular, marshy character of the district; while the prefix is generally taken to indicate the name of a Saxon overlord, Beormund. Bermondsey was in favour with the Norman kings as a place of residence, and there was a palace here, perhaps from pre-Norman times. A Cluniac monastery was founded in 1082, and Bermondsey Cross became a favoured place of pilgrimage. The foundation was erected into an abbey in 1399, and Abbey Road recalls its site. Similarly, Spa Road points to the existence of a popular spring and pleasure grounds, maintained for some years at the close of the 18th century. Jacob Street marks Jacob’s Island, the scene of the death of Bill Sikes in Dickens’s Oliver Twist. Tooley Street, leading east from Southwark by London Bridge railway station, is well known in connexion with the story of three tailors of Tooley Street, who addressed a petition to parliament opening with the comprehensive expression “We, the people of England.” The name is a corruption of St Olave, or Olaf, the Christian king of Norway, who in 994 attacked London by way of the river, and broke down London Bridge.

 BERMUDAS, a group of islands in the Atlantic Ocean, forming a British colony, in 32° 15′ N. and 64° 50′ W., about 580 m. E. by S. from Cape Hatteras on the American coast. The group, consisting of small islands and reefs (which mark the extreme northern range of the coral-building polyps), is of oval form, measuring 22 m. from N.E. to S.W., the area being 20 sq. m. The largest of the islands is Great Bermuda, or the Main Island, 14 m. long and about a mile in average width, enclosing on the east Harrington or Little Sound, and on the west the Great Sound, which is thickly studded with islets, and protected on the north by the islands of Watford, Boaz, Ireland and Somerset. The remaining members of the group, St George, Paget, Smith, St David, Cooper, Nonsuch, &c., lie N.E. of the Main Island, and form a semicircle round Castle Harbour. The fringing islands which encircle the islands, especially on the north and west, leave a few deep passages wide enough to admit the largest vessels.

Geology.—The Bermudas consist of aeolian limestones (cf. ) which in some of the larger islands form irregular hills attaining a height of some 200-250 ft. These limestones are composed chiefly of comminuted shells drifted and deposited by the wind, and they are very irregularly stratified, as is usually the case with wind-blown deposits. Where fresh the rock is soft, but where it has been exposed to the action of the sea it is covered by a hard crust and often loses all trace of stratification. The surface is frequently irregularly honeycombed. Even the reefs are not wholly formed of coral. They are ridges of aeolian limestone plastered over by a thin layer of corals and other calcareous organisms. The very remarkable “serpuline atolls” are covered by a solid crust made of the convoluted tubes of serpulae and Vermetus, together with barnacles, mussels, nullipores, corallines and some true incrusting corals. They probably rest upon a foundation of aeolian rock. The Bermudas were formerly much more extensive than at present, and they may possibly stand upon the summit of a hidden volcano. There are evidences of small oscillations of levels, but no proofs of great elevation or depression.

Soil, Climate, &c.—The surface soil is a curious kind of red earth, which is also found in ochre-like strata throughout the limestone. It is generally mixed with vegetable matter and coral sand. There is a total want of streams and wells of fresh water, and the inhabitants are dependent on the rain, which they collect and preserve in tanks. The climate is mild and healthy, although serious epidemics of yellow fever and typhus have occurred. The maximum reading of the thermometer is about 87° F. and its minimum 49°, the mean annual temperature being 70°. The islands attract a large number of visitors annually from America. Vegetation is very rapid, and the soil is clad in a mantle of almost perpetual green. The principal kind of tree is the so-called “Bermudas cedar,” really a species of juniper, which furnishes timber for small vessels. The shores are fringed with the mangrove; the prickly pear grows luxuriantly in the most barren districts; and wherever the ground is left to itself the sage bush springs up profusely. The citron, sour orange, lemon and lime grow wild; but the apple and peach do not come to perfection. The loquat, an introduction from China, thrives admirably. The mild climate assists the growth of esculent plants and roots; and a considerable trade is carried on with New York, principally in onions, early potatoes, tomatoes, and beetroot, together with lily bulbs, cut flowers and some arrowroot. Medicinal plants, as the castor-oil plant and aloe, come to perfection without culture; and coffee, indigo, cotton and tobacco are also of spontaneous growth. Few oxen or sheep are reared in the colony, meat, as well as bread and most vegetables, being imported from America. The indigenous mammals are very few, and the only reptiles are a small lizard and the green turtle. Birds, however, especially aquatic species, are very numerous. Insects are comparatively few, but ants swarm destructively in the heat of the year. Fish are plentiful round the coasts, and the whale-fishery was once an important industry, but the fisheries as a whole have not been developed.

Towns, and Administration.—There are two towns in the Bermudas: St George, on the island of that name, founded in