A geological inquiry respecting the water-bearing strata of the country around London, with reference especially to the water-supply of the metropolis |
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Page 79
... Dorking it is apparently about 40 feet thick , near Guildford 50 feet , whilst at Farnham it measures from 84 to 90 feet . In the vale of Pewsey and at Devizes , it at- tains a thickness of not less than 140 feet . Turning eastward ...
... Dorking it is apparently about 40 feet thick , near Guildford 50 feet , whilst at Farnham it measures from 84 to 90 feet . In the vale of Pewsey and at Devizes , it at- tains a thickness of not less than 140 feet . Turning eastward ...
Page 80
... Dorking to Albury . Thence by Guildford to Farnham it is less conspicuous . At Farnham it again spreads out , occupying a wider and higher belt , and increasing in breadth as it ranges southward towards Alton and Sel- bourne . In this ...
... Dorking to Albury . Thence by Guildford to Farnham it is less conspicuous . At Farnham it again spreads out , occupying a wider and higher belt , and increasing in breadth as it ranges southward towards Alton and Sel- bourne . In this ...
Page 83
... Dorking station ; the hills between Farnham Castle and Ridgeway ; the road from Devizes to Pottern , -the road from East Challow to Wantage , and the hill crossed by Knightsbridge Lane , two miles north by east of Watlington . These ...
... Dorking station ; the hills between Farnham Castle and Ridgeway ; the road from Devizes to Pottern , -the road from East Challow to Wantage , and the hill crossed by Knightsbridge Lane , two miles north by east of Watlington . These ...
Page 86
... Dorking , and Godalming , all of which towns are situated upon it . In this district it consists of thick masses of coarse quartzose , light yellow sands , interstratified with others of a finer grain , and of brighter colour , ochreous ...
... Dorking , and Godalming , all of which towns are situated upon it . In this district it consists of thick masses of coarse quartzose , light yellow sands , interstratified with others of a finer grain , and of brighter colour , ochreous ...
Page 88
... Dorking and Guildford 680+ • Devizes and Calne Generally Leighton Buzzard 700 20 150 250 350 250 367 Oxfordshire Buckinghamshire Bedfordshire · S Woburn Biggleswade Average thickness * In the Isle of Wight , the fine coast section of ...
... Dorking and Guildford 680+ • Devizes and Calne Generally Leighton Buzzard 700 20 150 250 350 250 367 Oxfordshire Buckinghamshire Bedfordshire · S Woburn Biggleswade Average thickness * In the Isle of Wight , the fine coast section of ...
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Common terms and phrases
alkaline appear arenaceous argillaceous Artesian average Bedfordshire beds beneath London bore Buckinghamshire calcareous Cambridgeshire carbonate of lime carbonic acid chalk marl considerable Cretaceous crop Degousée depth Devizes division Dorking drainage drift escarpment extent fall fault feet thick fissures flow formation France gallons of water Gault geological Godstone grains gravel green Grenelle ground Guildford height hills impermeable inches iron Kent lithological character London clay Lower Greensand Lower Tertiary sands Lower Tertiary strata mass Merstham mineral mottled clays nearly neighbourhood North Downs observations Oolite outcrop Oxfordshire Paris pass permeable portion probably proportion quantity of water rain rain-fall Reigate rise river rocks Saffron Walden salts sections siliceous soluble springs square miles subterranean sunk superficial area supply of water surface Surrey Tertiary district Thames tract traversed underground Upper Greensand valley varies water-bearing deposit water-bearing strata water-level water-supply Watford whilst
Popular passages
Page 164 - DEGREES OF HARDNESS AND DEGREES OF ALKALINITY EXPLAINED. Degrees of Hardness. — Each degree of hardness indicates as much hardness as would be produced by one grain of chalk per gallon held in solution in the form of bicarbonate of lime, free from any excess of carbonic acid. The degree of hardness caused by a lime salt depends, not on the state of combination of the calcium it contains, but on the quantity of the calcium.