A Fact Worth Knowing

Set a pitcher of ice water ín a room inhtvbited, and in a few hours it will have absorbed nearly all the perspired gases of the room, the air of which will have beemne purer, but tho water ntterly filthy. 'l'his dependa on tho fact that water has tho faeulty of condensing and therefore absorbing nearly all the g;ü-os. At ordinary temperaturo, a pint of water will contain a pint of carbonio acid aa and several pints of nmmonia. Tli capacity is uearly doubled by reducing tho tempe rature to that of ico. Henee water kept in the room awhile is always unfit for use, and should be ofton removed, whether it has becoino warm or not. And for the same reason the water in a pump should all be pumped out in the morning before any is usod. That wbich lias stood in a pitcher over night is not fit for coffee water in the morning. Iiupure water is as injurious to health as impure air, and every person should próvida the means of obtainiag fresh, pare water for all domestio uses.