Report of the Department of Health of the City of Chicago

1867-69 contains a sanitary history of Chicago from 1833 to 1870.

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Página 27 - Nero was stated to measure eleven feet from the tip of his nose to the end of his tail, and his proportions were in other respects large.
Página 44 - ... matter is able to produce an injurious effect upon health. Therefore, if a large proportion of organic matter was removed by the process of oxidation, the quantity left might be quite sufficient to be injurious to health. With regard to the oxidation, we know that to destroy organic matter the most powerful oxidizing agents are required ; we must boil it with nitric acid and chloric acid and the most perfect chemical agents. To think to get rid of organic matter by exposure to the air for a short...
Página 44 - ... per cent, of sewage, we are led in each case to the inevitable conclusion, that the oxidation of the organic matter in sewage proceeds with extreme slowness, even when the sewage is mixed with » large volume of unpolluted water, and that it is impossible to say how far such water must flow before the sewage matter becomes thoroughly oxidized.
Página 43 - In fact, whether we examine the organic' pollution of a river at different points of its flow, or the rate of disappearance of the organic matter of sewage when the latter is. mixed with fresh water and violently agitated in contact with air, or finally, the rate at which dissolved oxygen disappears in water polluted with five per cent...
Página 15 - In case of pestilence or epidemic disease, or of danger from anticipated or impending pestilence or epidemic disease, or in case the sanitary condition of the city should be of such a character as to warrant it, it shall be the duty of the...
Página 22 - ... for a period of not less than thirty (30) days, nor more than ninety (90) days, or by both such fine and imprisonment.
Página 22 - ... of this Ordinance, and to free and unrestrained examination of all apparatus or utensils used in such manufacture, or in the disposition of gases generated in such manufacture.
Página 22 - Sec. 3. Any person who violates any of the provisions of this act shall be deemed guilty of a misdemeanor and upon conviction...
Página 43 - It is thus evident, that so far from sewage mixed with twenty times its volume of water being oxidised during a flow of ten or twelve miles, scarcely two-thirds of it would be so destroyed in a flow of 168 miles at the rate of one mile per hour, or after the lapse of a week.
Página 46 - No f one has conclusively shown that it is safe to trust to dilution, storage, agitation, filtration, or periods of time, for the complete removal from water of disease-producing elements, whatever these may be. Chemistry and microscopy cannot and do not claim to prove the absence of these elements in any specimen of drinking water.

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