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Chicago, March 6, 1903.
To the Editor:
—In the Bulletin of the health department for February, 1903, there is a comment on my paper "The Fly as a Carrier of Typhoid," published in The Journal, which seems to require an answer.The Bulletin quotes my statement that the value of daily reports issued by the board of health as to the condition of the water "becomes somewhat problematical when one considers that twenty-four hours must always elapse between the collecting of the water and the published report, so that the people who read on Tuesday morning that the water at a certain station is bad and take precautions accordingly are a full day late, for they were drinking the bad water on Monday." It then proceeds to explain that the water samples are collected at the pumping stations between 8 and 9 o'clock each morning, and that the results of
Hamilton A. The Chicago Water Supply.. JAMA. 1903;XL(11):724. doi:10.1001/jama.1903.02490110040013