(water over weir)
31Lake Vyrnwy — Infobox lake lake name = Lake Vyrnwy image lake = Pictures 1406.jpg caption lake = View overlooking Lake Vyrnwy in Powys showing the full extent of the lake image bathymetry = caption bathymetry = location = Wales coords =… …
32Boyd's Automatic tide signalling apparatus — The automatic tide signalling apparatus at Irvine harbour in North Ayrshire, Scotland, is probably unique, having been invented and patented by Martin Boyd, the Irvine harbourmaster, in 1905 and opened in 1906.McEwan, Mae (1985). The Harbour… …
33Dee Regulation Scheme — Coordinates: 53°16′34″N 3°08′49″W / 53.276°N 3.147°W / 53.276; 3.147 The River Dee regulation scheme is a system of …
34River Dee regulation system — The water demands of North West England including Liverpool and the Wirral far exceed the locally available sources of clean water. The River Dee runs mainly in north Wales before flowing through Chester, England, and then returning to Wales in a …
35Niagara Falls — For other uses, see Niagara Falls (disambiguation). Niagara Falls A view of th …
36reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …
37Morganza Spillway — The Morganza Spillway, between the Mississippi River and the Atchafalaya Basin, shown while open in 1973. Water flows from the Mississippi (upper right) into the Morganza Floodway (lower left). The Morganza Spillway or Morganza Control Structure… …
38Natural Bridge State Park (Massachusetts) — Natural Bridge State Park Massachusetts State Park …
39Tigris-Euphrates river system — ▪ river system, Asia Introduction great river system of Southwest Asia, comprising the Tigris and Euphrates rivers, which have their sources within 50 miles (80 km) of each other in eastern Turkey and travel southeast through northern Syria and… …
40Ballina, County Mayo — Ballina Béal an Átha   Town   Ballina town centre …
