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Show The Purity of Wells. m - - - - - - - jj-j .fcji H "Tho Pollution of Deep Wells" was tho subject of a paper beforo a scientific scien-tific society, In which wns descrlbod an interesting experiment conducted by tho United States geological survey sur-vey arid tho geological survey of Goorgia, acting In co-oporatlon, to do-tormlno do-tormlno tho liability of contamination of tho deep wolls and springs In the vicinity of Quitman, On., by tho proposed pro-posed action of that city in turning tho public sowago Into an underground under-ground stream through a bore hole. To test tho matter, tho survoys mentioned men-tioned Inserted two tons cf salt Into tho woll Into which It wns proposed to turn tho aowngo. Samples of water woro taken beforo tho experiment to dotermlno tho normal chlorln of tho waters, and at short Intervals during and for somo tlmo nfter tho export- mont. Tho report concludes that "on H nnalyzlng tho samples It was shown H that tho salt had ontorcd all of tho H deep wells In town, thereby domon- H strattng that tho Insertion of sowngo H would havo contaminated all of tho H wells, and possibly led to a dangerous r H opldomlc." Undoubtedly tho water of H tho wells Is often polluted by drain- H ago, and tho experiment verlflos the jH danger, which should holp health ofll- jH cers In their work. One wondors, H however, If thero Is not a slight fnl- jH lacy in tho conclusion introduced by H tho doubt If micro-organisms might H not bo prevented from passing by tho H earth filtration, whllo a solution of H salt, would bo ablo to permcato tho H medium. Why not uso pathogonlo H bacilli themselves for a moro convlno- jH Ing tost? American Medlclno. H |