Water And Disease

Tho Journal of Chemistry warns the Irinkers of water from wells near dweil nga to beware of typhoid poisou, snre o be found sooner or later in those resïrvoirs, if any of the house drainage 3an percolato to them. The gelaunous matter ofteü found upon the stones of a well is a poison to the human system, probably causing by its spores a fcrinentation of the blood with abnormal heat or fever. Wholesomo untainted water is always freo from all color or odor. To test it thorouglily place half a pint in a clear bottle, with a few grains of lump sugar, and exposé it, stoppered, to sunlight in a window. lf , even after an exposure of eight or ten days, the water becomes turbid, it is a sure indication that the water has been contaminated by sewage of some kind ; if it remains perfectly clear it is pure and Baf e,