Water in these places drills its way downward by dissolving the carbonate rock to form an extensive underground river system.

He named both oxygen ( 1778 ) and hydrogen ( 1783 ) and helped construct the metric system, put together the first extensive list of elements, and helped to reform chemical nomenclature.

Domestically speaking, the county has a nationwide cellular telephone system and an extensive network of telephone cables.

In Belgium an extensive system of tram-like local railways called vicinal or buurtspoor lines crossed the country in the first half of the 20th century, and had a greater route length than the main-line railway system.

extensive microwave radio relay system and a domestic satellite system with 64 earth stations.

In conjunction with these products, Burroughs also manufactured an extensive range of cheque processing equipment, normally attached as terminals to a larger system such as a B2700 or B1700.

The extensive Chilean protected areas system includes 32 national parks, 48 natural reserves and 15 natural monuments.

* System: privatization began in 1988 ; advanced telecommunications infrastructure ; modern system based on extensive microwave radio relay facilities ; fixed-line connections have dropped in recent years as mobile-cellular usage continues to increase, reaching a level of 85 telephones per 100 persons

** Domestic: extensive microwave radio relay links ; domestic satellite system with 3 earth stations

The country has an extensive road system of more than 30, 000 kilometers, although much of it is in disrepair.

An extensive system of ferries, operated by Jadrolinija, serves Croatia's many islands and links coastal cities.

The Cretaceous was named for the extensive chalk deposits of this age in Europe, but in many parts of the world, the Cretaceous system consists for a major part of marine limestone, a rock type that is formed under warm, shallow marine circumstances.

An extensive canal system exists within the Imperial Valley in the Southern California desert to provide irrigation to agriculture within the area.

A more extensive system of social welfare benefits was established by the Attlee Government, which did much to reduce acute social deprivation.

The Ferrocarril Domingo Faustino Sarmiento | Sarmiento Line is part of the extensive Rail transport in Argentina # Commuter network | Buenos Aires metropolitan rail system.

The Canadian Great Lakes region has similarities to that of the Upper Midwest & Great Lakes region and / or Yooper dialect ( in particular Michigan which has extensive cultural and economic ties with Ontario ), while the phonological system of western Canadian English is virtually identical to that of the Pacific Northwest of the United States, and the phonetics are similar.

The vast system of Roman aqueducts also made extensive use of hydraulic cement.

DeVos and Wagatsuma observe that a systematic and extensive caste system was part of the Japanese society.

Many cacti have a short growing season and a long dormancy and are able to react quickly to any rainfall, helped by an extensive but relatively shallow root system.

Its coordinates are 15 25 N, 61 20 W. It is known as " The Nature Island of the Caribbean " due to its spectacular, lush, and varied flora and fauna, which is protected by an extensive natural park system.

He introduced an extensive new tax system based on heads ( capita ) and land ( iuga ) and tied to a new, regular census of the Empire's population and wealth.

Embodying the philosophy explained by Chesterton, above, that too much capitalism means too few capitalists, not too many, America's extensive system of anti-trust legislation seeks to prevent the concentration of market power in a given industry into too-few hands.

; Telephone system: large system ; underwent extensive upgrading during 1990s and is reasonably modern ; Telecom Egypt, the landline monopoly, has been increasing service availability and in 2006 fixed-line density stood at 14 per 100 persons ; as of 2007 there were three mobile-cellular networks and service is expanding rapidly

In certain cases, extensive " feeder canals " were built to bring water from sources located far from the canal.

Colbert also worked to decrease internal barriers to trade, reducing internal tariffs and building an extensive network of roads and canals.

An extensive system of dikes and canals has been built to contain the Red River and to irrigate the rich rice-growing delta.

Large scale agriculture was practiced and an extensive network of canals was used for the purpose of irrigation.

The emperor also developed an extensive network of roads and canals connecting the provinces to improve trade between them.

An extensive water management system was designed to replenish the area's water table, which includes of freshwater canals and of saltwater canals.

Approximately two miles east of Stockton is an extensive network of manmade canals.

Over the years an extensive system of canals has been built.

Land navigation, until the advent of extensive railroads was extremely dependent upon river systems and canals.

Topographical features within the Phitsanulok Province include the Phetchabun Mountains, the Nan River and several of its tributaries, waterfalls, rapids, swamps, forests, grasslands, caves, a reservoir and an extensive network of canals.

Xochimilco is best known for its canals, which are left from what was an extensive lake and canal system that connected most of the settlements of the Valley of Mexico.

The extensive network of canals for hydroelectric schemes posed a threat to the Black Stilt ( or kaki ), an endangered river wading bird.

The Nazca developed extensive irrigation systems, including underground canals, that allowed them to farm the land.

The South Fork is formed from the confluence of several creeks in Jess Valley northeast of Madeline and flows west through a narrow canyon, past Likely, then generally through a broad ranching valley where its waters are diverted for irrigation and waterfowl conservation in an extensive system of canals.

The collieries were part of an extensive mine complex, the Worsley Navigable Levels whose underground canals stretched from the Delph at Worsley and linked the mines to the Bridgewater Canal.

The only alternative winter shipping route to points east was a lengthy circuitous southern route by riverboat down the Ohio and Mississippi rivers to New Orleans for transhipment east, but the entire regions adjacent to the Great Lakes lacked a means of communication with the Ohio River for shipment of their products-Ohio had a rather extensive network of canals under construction by this time, but they too froze in winter like the Erie Canal.

By 1790, an extensive network of canals was in place in the Midlands, or under construction.

It was long used to irrigate the surrounding farmlands, and was the centre of an extensive network of canals and tributaries.

Because of the extensive coal fields it tapped, the Reading would become one of the most profitable railroads in the U. S. It was also considered Moncure Robinson ’ s first mountain railroad without inclines -- a statement about the transition from the Canal Era of feeder coal roads to water transport / canals.

An extensive network of canals also supports a strong agricultural sector, as well as providing a popular means of transport.

John MacGregor, who gives a description of them in his book Rob Roy on the Jordan, affirmed that as a work of hydraulic engineering, the system and construction of the canals, by which the Abana and Pharpar were used for irrigation, might be considered as one of the most complete and extensive in the world.

The place is surrounded by extensive vineyards and orchards, all well watered by canals led from the river, and producing great quantities of fruit.

Senusret II took a great deal of interest in the Faiyum oasis region and began work on an extensive irrigation system from Bahr Yusuf through to Lake Moeris through the construction of a dike at El-Lahun and the addition of a network of drainage canals.