Water Supply: The Present Practice of Sinking and Boring Wells, with Geological Considerations and Examples of Wells ExecutedSpon, 1875 - 217 pages |
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Page 13
... river Thames . The average thickness of these sands in this district may be about 50 to 60 feet . In their range from east to west , the beds 2 become more clayey and less permeable , and 1 , very thin . As we approach London the ...
... river Thames . The average thickness of these sands in this district may be about 50 to 60 feet . In their range from east to west , the beds 2 become more clayey and less permeable , and 1 , very thin . As we approach London the ...
Page 22
... can be of comparatively little value . There are also , in some valleys , river deposits of silt , mud , 1 and gravel . These are , however , of little. g , Gravel . a , London clay . Fig . 15 . 22 GEOLOGICAL CONSIDERATIONS .
... can be of comparatively little value . There are also , in some valleys , river deposits of silt , mud , 1 and gravel . These are , however , of little. g , Gravel . a , London clay . Fig . 15 . 22 GEOLOGICAL CONSIDERATIONS .
Page 24
... river . RAINFALL IN THE DISTRICT WHERE THE WATER - BEARING STRATA CROP OUT . When inquiring into the probable relative value of any water- bearing strata , it is necessary to compare the rainfall in their respective districts . Rain is ...
... river . RAINFALL IN THE DISTRICT WHERE THE WATER - BEARING STRATA CROP OUT . When inquiring into the probable relative value of any water- bearing strata , it is necessary to compare the rainfall in their respective districts . Rain is ...
Page 33
... river level . Between Lewisham and Dept- ford the chalk disappears below the Tertiary series , and does not come to the surface till we reach the neighbourhood of Windsor and Maidenhead . There is also , probably , another line of ...
... river level . Between Lewisham and Dept- ford the chalk disappears below the Tertiary series , and does not come to the surface till we reach the neighbourhood of Windsor and Maidenhead . There is also , probably , another line of ...
Page 192
... River Company .. 144 27 1071 63 120 Ditto Theobald's Park 71 65 Chiswell Street Whitbread's Brewery 183 150 183 132 Chiswick ,, Griffin Brewery .. 204 200 297 Ditto " 9 Lamb Brewery 203 194 293 Ditto Ditto 339 297 29 Clewer Green Berks ...
... River Company .. 144 27 1071 63 120 Ditto Theobald's Park 71 65 Chiswell Street Whitbread's Brewery 183 150 183 132 Chiswick ,, Griffin Brewery .. 204 200 297 Ditto " 9 Lamb Brewery 203 194 293 Ditto Ditto 339 297 29 Clewer Green Berks ...
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Autres éditions - Tout afficher
Water Supply: The Present Practice of Sinking and Boring Wells. With ... Ernest Spon Affichage du livre entier - 1885 |
Water Supply: The Present Practice of Sinking and Boring Wells. With ... Ernest Spon Affichage du livre entier - 1885 |
Water Supply: The Present Practice of Sinking and Boring Wells, with ... Ernest Spon Affichage du livre entier - 1875 |
Expressions et termes fréquents
Banister Fletcher beds Blue Clay Boilers bore-hole boring rod boring tool boring-head bottom Brewery brick brickwork bucket Butte-aux-Cailles cast-iron chalk chisel Civil Engineers cloth CONTENTS Construction crown 8vo cuts depth Ditto Edmund Sharpe excavation feet deep feet O.D. flints foot Formulæ gallons a day gallons a minute grapnel gravel greensand Grey Hedgerley hole Hydraulic illustrated inches diameter Isometric Projection joint Keuper length lever London clay lower Lower Tertiary Machinery Marl means Mechanical Memoranda mottled clays numerous OOLITE outcrop passed Passy Pebbles pipe piston plates Pocket-Book post 8vo pump quantity Railway rainfall READING BEDS RED SAND red sandstone River rock rope royal 8vo Screw Propeller screwed second edition sewed shaft shell shown in Fig sinking Slide Steam steining stone strata stratum stroke sunk surface Surface Condensers Tables thickness tion trepan tubbing tube upper valve vertical water-bearing strata Waterworks weight wood engravings wrought-iron yield
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