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Show Impure Ice. The Massachusetts board of health has examined 76 samples of water and 3:S6 samples of ice from 58 localities, with the result of showing that, contrary to general belief, ice iay be nearly as impure im-pure as the water from which it forms. The crystallization of tho water forces out tho color, salt, and most of the matter mat-ter in solution, and clear ice from polluted pol-luted sources may be comparatively free from impurities and the probability of hiding disease germs. But in snow ice and ice formed by flooding the impurities become entangled, entan-gled, so that freezing gives no purification. purifica-tion. The public is warned by tho board, therefore, that ice is unsafe for domestic purposes when obtained from a source polluted by sewage beyond that which would be allowable in drinking water, and that in general it is much safer to use for drinking water and for placing in contact with food that portion of the ice that is clear. Arkausaw Traveler. |