Show HEALTH chicago august 22 tho weekly bulletin issued by the health department baya that no such healthful summer as this was ever reported for chicago favorable and temperature a good milk supply and absolutely pure water are the principal factors contributing to this result of tho water supply the bulletin says there Is no obvious or plausible rea son tor tho purity except tha continuous action of drainage channel this the fifth year that an average of more than cubic feet a minute night and day baa been flowing from the latee down the desplaines and illinois valley and during this amo there has been a steady reduction in deaths from the impure water diseases |