Papers Upon the Supply of Water to TownsE. & F.N. Spon, 1865 - 53 pages |
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Page 18
... yielded by springs flowing in the areas , as it may occur that the rain falling on a porous part of the district may make its appearance again at another point in the form of a natural spring 18 THE SUPPLY OF WATER TO TOWNS .
... yielded by springs flowing in the areas , as it may occur that the rain falling on a porous part of the district may make its appearance again at another point in the form of a natural spring 18 THE SUPPLY OF WATER TO TOWNS .
Page 29
... yielded by wells cannot be absolutely ted , as it is dependent upon so many varying circum- s ; but in considering this part of the question we must egard to the area of drainage , the nature of the stratum , , strike , faults ...
... yielded by wells cannot be absolutely ted , as it is dependent upon so many varying circum- s ; but in considering this part of the question we must egard to the area of drainage , the nature of the stratum , , strike , faults ...
Page 30
... yielded by springs of this nature is often great , owing to the interception of the body of water flowing through the strata . The constancy of a spring depends upon the extent and character of the strata , combined with the rainfall ...
... yielded by springs of this nature is often great , owing to the interception of the body of water flowing through the strata . The constancy of a spring depends upon the extent and character of the strata , combined with the rainfall ...
Page 34
... yielded by them is limited by the friction of the water in passing through the interstical space and the mole- cular attraction of the strata for retaining the water , which prac- tically limits the area draining into the well ...
... yielded by them is limited by the friction of the water in passing through the interstical space and the mole- cular attraction of the strata for retaining the water , which prac- tically limits the area draining into the well ...
Page 35
... yielded by wells cannot be absolutely computed , as it is dependent upon so many varying circum- stances ; but in considering this part of the question we must have regard to the area of drainage , the nature of the stratum , its dip ...
... yielded by wells cannot be absolutely computed , as it is dependent upon so many varying circum- stances ; but in considering this part of the question we must have regard to the area of drainage , the nature of the stratum , its dip ...
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9 ft absorbed acres amount Artesian Arthur Phillips Bashforth Boilers bore-hole boring tool brick steining brickwork chalk character cloth collected construction Cottages crown 8vo deep depends depth diameter district drainage area drains earth engravings excavation foot furnish a supply gallons of water gallons per day gauge geological impervious impurities Institute Civil Engineers interstical spaces iron cylinders Joseph Gibbs Lancashire land matter Mechanical Member Institute Civil millstone grit nature P. L. Simmonds pipes Plate porous strata portion practical Pump quantity of water Railway rain gauge rainfall rate of evaporation red sandstone formation reservoirs River Exe River Ouse River Tees River Vartry river water rods royal 8vo Screw sewed shaft sinking soil springs Steam Engine stored supply is taken supply of water surface Surface Condensation temperature Thomas Docwra tion towns Treatise Valve vapour water capable water daily water level water per day water taken water yielded Zerah Colburn دو