1859 The Book of one Hundred Beverages - BERNHARD (William) -

' AQUEOUS· B:svnAG°E&··' 11 't traruiparent well water, for that of the 'uwst tur-·· t bid stream. '"· · , · · ._. ~·,..-- N. B. The water · ·or"'-pum~. sittii~ near· · .. church-yards, is always. contaminated by the deep drninage·and oosings :· it is unwholesOme in · the extreme. RIVER WATER In its purest state may be regarded as the best :fitted for human use ; near cities it is always · impure, containing suspended, organic matters, that require to be separa.ted by filtration, before , it is used as a beverage or for cookery. . - ; FILTEREJJWATER. -- · · · .. The cheapest and moei efficient filter, ·on a · . small scale, may be thus made :- take a wry· large common ga.rdefl: !J.ow~ over the hole. in ; the bottom place a piece o( ·sponge; · on which , J>Ut a layer of small atoaes, . fill . the pot .two--' thirds of the by up with' a mixture of one ~ -~ coanely powdered fruhly 6tcrnea charcoal, and :._ two parts well wa8hed, clear, sharp sand; on the top lay a piece ol thick fia.nDel, which is to be pressed down in the centre, but tied se- · curely over the rim. -· ·· The :flannel will form a · basin. into which the water to be filtered is to be ~ured, when it will be iO~ to flow C?ui. _ rapidly, and perfectly clear ; the flannel, which separates the grosser . impurities, should be fre– quentl y removed and washed, and the sand and , cliarcoa.l changed two or three times a year. The ; action of this filter is superior to many or thcee··

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