Papers Upon the Supply of Water to TownsE. & F.N. Spon, 1865 - 53 pages |
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Page 11
... sands of the red sandstone formation the rainfall is absorbed as fast as it touches the surface , and the same may be said of the rain falling in many places on the chalk formation , while upon the clay soils , or impervious formation ...
... sands of the red sandstone formation the rainfall is absorbed as fast as it touches the surface , and the same may be said of the rain falling in many places on the chalk formation , while upon the clay soils , or impervious formation ...
Page 14
... sand . The best way to preserve the purity of rain water col- lected from the roofs of our dwellings is by preventing its expo- sure to light and heat ; this can best be done in underground tanks , which should be well ventilated . It ...
... sand . The best way to preserve the purity of rain water col- lected from the roofs of our dwellings is by preventing its expo- sure to light and heat ; this can best be done in underground tanks , which should be well ventilated . It ...
Page 18
... sand- stone rocks . Next to these , the water taken from pastoral dis- tricts will probably rank in purity , and that from cultivated dis- tricts will be the worst . In cases where the water is collected quickly from the drainage areas ...
... sand- stone rocks . Next to these , the water taken from pastoral dis- tricts will probably rank in purity , and that from cultivated dis- tricts will be the worst . In cases where the water is collected quickly from the drainage areas ...
Page 24
... sand . Coarse sand - size of linseed . Fine gravel . Pebbles - 1 in . diameter . Angular stones - size of an egg . The way in which the particles of sand are transported by a river are interesting , and the examination of a sandy bed of ...
... sand . Coarse sand - size of linseed . Fine gravel . Pebbles - 1 in . diameter . Angular stones - size of an egg . The way in which the particles of sand are transported by a river are interesting , and the examination of a sandy bed of ...
Page 30
... sand or gravel ) of moderate thickness covers an impermeable strata ; a natural flow of water will take place if there is a dip in the strata , and at the lower outcrop springs of this class will appear , but owing to the limited area ...
... sand or gravel ) of moderate thickness covers an impermeable strata ; a natural flow of water will take place if there is a dip in the strata , and at the lower outcrop springs of this class will appear , but owing to the limited area ...
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Expressions et termes fréquents
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