. Dr. Evans' How to keep well; . tion is promoted. Garbage reduction canmake use of stale garbage, and thus, indirectly, infrequent garbage service ispromoted. Those are the only disadvantages of the method. It can be operatedwithout odor and without nuisance. The soluble odorous gases can bewashed out of the smoke and those that are insoluble can be burned. Itsgreat advantage is that next to the pig feeding method it is the most eco-nomical. The greatest value in garbage is its food value. That value is abstractedby pig feeding. The next greatest value is the fat and fertilizer val
. Dr. Evans' How to keep well; . tion is promoted. Garbage reduction canmake use of stale garbage, and thus, indirectly, infrequent garbage service ispromoted. Those are the only disadvantages of the method. It can be operatedwithout odor and without nuisance. The soluble odorous gases can bewashed out of the smoke and those that are insoluble can be burned. Itsgreat advantage is that next to the pig feeding method it is the most eco-nomical. The greatest value in garbage is its food value. That value is abstractedby pig feeding. The next greatest value is the fat and fertilizer value is abstracted by reduction. In the reduction method the garbageis roasted to drive off the water. The fat is then extracted by percolationwith naphtha and the residue is dried and ground into fertilizer grease is sold for soap and allied purposes and the fertilizer stock ismixed with chemicals to make different brands of commercial fertilizer. The Columbus, Ohio, plant clears 54 cents a ton above all operation cost,.
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