Papers Upon the Supply of Water to TownsE. & F.N. Spon, 1865 - 53 sider |
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Side 34
... bored through impermeable strata until a water - bearing strata is tapped , when the water is forced upwards by ... boring wells of this class is so great , that the precise period of their introduction is unknown . They are common ...
... bored through impermeable strata until a water - bearing strata is tapped , when the water is forced upwards by ... boring wells of this class is so great , that the precise period of their introduction is unknown . They are common ...
Side 35
... boring such wells came into this country , and they are named by us after that place . Artesian wells are artificial springs , and the same remarks that apply to springs will apply to Artesian wells . The quantity of water yielded by ...
... boring such wells came into this country , and they are named by us after that place . Artesian wells are artificial springs , and the same remarks that apply to springs will apply to Artesian wells . The quantity of water yielded by ...
Side 39
... bored or misered to great depth under water . It requires less steining than any other form or shape of well of equal area , and its form is the best for withstanding the lateral pressure of the earth , as a strain on a particular part ...
... bored or misered to great depth under water . It requires less steining than any other form or shape of well of equal area , and its form is the best for withstanding the lateral pressure of the earth , as a strain on a particular part ...
Side 40
... can be sunk under water by the aid of the boring tool and miser , the consequent expense of pumping is saved . It will be entirely a · matter of calculation whether or not they should be 40 THE SUPPLY OF WATER TO TOWNS .
... can be sunk under water by the aid of the boring tool and miser , the consequent expense of pumping is saved . It will be entirely a · matter of calculation whether or not they should be 40 THE SUPPLY OF WATER TO TOWNS .
Side 42
... BORING WELLS . The art of boring wells is evidently more modern than the practice of sinking , yet it is of so remote a date that the precise period of its introduction is unknown . Wells that have been bored are common in China , Syria ...
... BORING WELLS . The art of boring wells is evidently more modern than the practice of sinking , yet it is of so remote a date that the precise period of its introduction is unknown . Wells that have been bored are common in China , Syria ...
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absorbed acres amount Boilers boring bottom brickwork carried chalk channels character circumstances cities Civil clay cloth collected connected consequently considerable considering construction containing continued Cottages cylinders daily deep dependent depth derive Details diameter direct district drainage area drains earth edition effect Engineers engravings evaporation example executed experiment falling flow foot formation furnish gallons of water gauge give greater head illustrated impervious impurities increase introduction iron land less limited lined London Marine materials matter mean measure Mechanical mode nature observed ordinary original owing partly pipes places Plate porous portion practical present probably procured Pump quantity of water rain rainfall raised receive reservoirs rivers rods royal sand Scale shaft sinking soil springs Steam steining stored strata sunk supply of water surface Table taken temperature tion tool towns Treatise Valve varies various yielded