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FIGURE 1. - 4later jct. <br />polymers have been tried in the lfurcau laboratory. ISes[ COlIdlLiOns and effec- <br />tive rates of application have been dutcriained [or most of the pro;ntsing ma[c- <br />rials. The more effective chemicals of those tested arc listed below in order <br />of effectiveness based upon the cost in cents for the amount of reagent <br />required to s[abilLze 1 square yard. An overlapping of costs resi.;lted because <br />some reagent requirements varied [or different tailings. General conclusions <br />derteed from the comparative data are as follows: <br />1. Cof+erex,° a resinous adhesive, furnished good wind-resisennt tailing <br />surface when applied in quantities equivalent [n 2'+0 gallons per acre and cost <br />ing approximately $65 per acre, but good resistance to water jet testing was <br />not achieved until reagent qu:+ntities costing $G 50 per acre were applied. <br />''Reference to specific company or brand names is made for identification only <br />and does not imply endorsccncnt by the iSurcau of Mines. <br />