. The new hydropathic cook-book : with recipes for cooking on hygienic principles : containing also a philosophical exposition of the relations of food to health : the chemical elements and proximate constitution of alimentary principles : the nutritive properties of all kinds of aliments : the relative value of vegetable and animal substances : the selection and preservation of dietetic materials, etc., e level, c. A small flan-nel bag is put in the end ofthe tube at a. The coarsestimpurities are retained by the flannel, the liner by the sand;and in passing upward to b, the purification
. The new hydropathic cook-book : with recipes for cooking on hygienic principles : containing also a philosophical exposition of the relations of food to health : the chemical elements and proximate constitution of alimentary principles : the nutritive properties of all kinds of aliments : the relative value of vegetable and animal substances : the selection and preservation of dietetic materials, etc., e level, c. A small flan-nel bag is put in the end ofthe tube at a. The coarsestimpurities are retained by the flannel, the liner by the sand;and in passing upward to b, the purification is rendered com-plete. It should be noticed, that the more compact the sandand the stones the wafer passes, the more perfect will be theprocess of purification. Cisterns are often constructed in cellars, and divided by apartition, reaching nearly to the bot-tom, into two unequal parts (fig. 3).The largest division, i, is half filledwith layers of sand, of various de-grees of fineness, through which thewater passes, and rises perfectly clearinto the division, c. A similar cistern with two partitionshas been recommended (fig. 4). Thepartition a does not reach quite tcthe bottom, and the other, &,%as anaperture. A piece of perforatedmetal, stone, wood, oi a cloth, isfixed in the middle division, a littleabove the bottom. On this is placed dotjbu: cistbrn filtbhwc Fig. 3. M . CISTERN 32 Hydropathic Cook-Book, Gleaning Filtering Anparatna—Cask Filter. Fig. 5. a layer of small pebbles, then coarse sand, then layers of char-coal, then fine sand and charcoal, the whole covered by a clothalso fixed just below the aperture b. The water is put in thedivision a, passes below the first partition, and by its pressurerises through the perforated plate or cloth, c, also through thepebbles, sand, and charcoal, and passing through the clothabove, runs through an aperture in the partition b, into thelast division, from which it is drawn as wanted. All kinds of filtering appa
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Keywords: ., bookcentury1800, booksubjectfood, booksubjectnutritionalphysiolo
