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Show Will Show Them How to -Detect Good Butter. Washington, January 31. Commissioner Coleman leaves for St. Louis on Monday afternoon to preside at the convention of the National Sugar Association and the Mississippi Valley Dairymen's Association, which are to be held this and next week.' At the latter convention the commissioner pro-1 poses to show the delegates the progress that he is endeavoring to make in the investigations inves-tigations of the adulteration of food, especially espec-ially dairy produots. Professor Taylor, of the Microscopical Department, who olaims to have discovered an unfailing test fob pube butteb, As compared with the counterfeit "article, will be present, and .by "means of a magic lantern and a series of micro-photographs will explain his discoveries and make an address ad-dress upon the subject by means of these illustrations. ' It is understood that the department de-partment is not ready to indorse these discoveries dis-coveries as being absolutely without question, ques-tion, but the Commissioner thinks the -convention is entitled to such information as he can furnish, and that the country ought to have the benefit of such suggestions as Prof. Taylor has to make. - |