Papers Upon the Supply of Water to TownsE. & F.N. Spon, 1865 - 53 sider |
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Side 16
... porous , a great portion of the rainfall will be absorbed ; and in constructing works for collecting water from areas of this nature , it will be well to consider if , by suitable under drainage , a larger portion of the rainfall cannot ...
... porous , a great portion of the rainfall will be absorbed ; and in constructing works for collecting water from areas of this nature , it will be well to consider if , by suitable under drainage , a larger portion of the rainfall cannot ...
Side 18
... porous , and its contour flat , as in some sandy and chalky districts , very little or no water could be depended upon from works of this character ; and , as the geological character of a district approaches one or the other of these ...
... porous , and its contour flat , as in some sandy and chalky districts , very little or no water could be depended upon from works of this character ; and , as the geological character of a district approaches one or the other of these ...
Side 19
... porous , resting on impervious strata , a much larger quantity can be obtained by under - drainage than if the water was taken from the surface only . The quantity of water capable of being taken by under - drainage , if the strata is ...
... porous , resting on impervious strata , a much larger quantity can be obtained by under - drainage than if the water was taken from the surface only . The quantity of water capable of being taken by under - drainage , if the strata is ...
Side 29
... porous strata of the highlands of a district into which it perco- lates , until intercepted by some impervious bed of strata , by which it is retained in the porous strata , and compelled to traverse it in the direction of its ...
... porous strata of the highlands of a district into which it perco- lates , until intercepted by some impervious bed of strata , by which it is retained in the porous strata , and compelled to traverse it in the direction of its ...
Side 29
... supply could be pro these arrangements consist generally of long tunnels or hea strata is moderately porous , and of large extent , D 2 THE SUPPLY OF WATER TO TOWNS . 35 introduction is unknown. They are common to Syria and ...
... supply could be pro these arrangements consist generally of long tunnels or hea strata is moderately porous , and of large extent , D 2 THE SUPPLY OF WATER TO TOWNS . 35 introduction is unknown. They are common to Syria and ...
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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