ESENEECICIA, a genus of trees of the natural order diosmace. The bark of E. fe'ori fuga is said to be equal in its effects to Peruvian bark. It is a tree 40 ft. high, a native of the s. of Brazil.
ESE (Gaelic, uisq, water), the name of several small Scotch rivers. The Dumfries shire Esk-is formed by the confluence of the Black and White Esk, which rise on the bor ders of Selkirkshire, near Ettrick Pen, the center of the southern Highlands, and run each 10 m. s.s.e. The united stream runs 35 m. s., and forms for a mile the boundary between Scotland and England. For the last 8 m. it runs s.s.w. in Cumberland, and finally falls into the head of the Solway firth. It flows in a Silurian, carbpniferous, and Permian basin, through some charming scenery, past Langholm, Canobie, and Longton. The upper part of the valley of this E., which is wild and pastoral, is called Eskdale Muir.—The Edinburghshire North and South Esk rise in the n. of Peeblesshire, between the Pentland and Moorfoot hills, and both run n.n.e. through a beautiful tract
in the e. of Edinburghshire, the n. branch, 20 m. long, passing Roslin and Hawthornden and the s. branch 15 m. long. The•wo branches unite in Dalkeith park, and run 3 m. n. into the firth of Forth at Musselburgh. The basin of the two streams is chiefly car boniferous.—The Forfarshire North and South Esk. The North Esk rises in the Gram pians, in the n. of the county, and runs 25 m. s.e. into the sea, 4 m. n. of Montrose. At Gan achy bridge it runs half a mile through a sandstone gorge 20 to 30 ft. deep. In the lower half of its course it divides Forfarshire from Kincardineshire. The South E. rises in the Grampians of the w. of Forfarshire, and runs 40 in. s.e. and e., crossing the valley of Strathmore. It passes Brechin, and ends in the tidal basin or lagoon of Mon trose. The basins of both consist of gneiss, mica-slate, clay-slate, and old red sandstone.