 | John Thomas Fanning - 1877 - 720 páginas
...the less the quantity of organic matter held by the water we drink, the more wholesome it is." " Nof one has conclusively shown that it is safe to trust...filtration, or periods of time, for the complete removal from water of disease-producing elements, whatever these may be. Chemistry and microscopy cannot and... | |
 | 1878 - 766 páginas
...river waters," in 1874, the following memorable reference to this subject is made. " The water-supply should be uncontaminable by drainage. There is no...trust to dilution, storage, agitation, filtration or period of time for the complete removal of disease-producing elements, whatever they may be. Chemistry... | |
 | 1886 - 758 páginas
...the less the quantity of organic matter held by the water we drink, the more wholesome it is." " No f one has conclusively shown that it is safe to trust...filtration, or periods of time, for the complete removal from water of disease-producing elements, whatever these may be. Chemistry and microscopy cannot and... | |
 | John Thomas Fanning - 1886 - 742 páginas
...the quantity of organic matter held by the water we drink, the more wholesome it is." "Nof °ne nas conclusively shown that it is safe to trust to dilution,...filtration, or periods of time, for the complete removal from water of disease-producing elements, whatever these may be. Chemistry and microscopy cannot and... | |
 | John Thomas Fanning - 1886 - 742 páginas
...the less the quantity of organic; matter held by the water we drink, the more wholesome it is.'' "Nof one has conclusively shown that it is safe to trust to dilution, storage, agitation, nitration, or periods of time, for the complete removal from water of disease- producing elements,... | |
 | New Jersey. State Department of Health - 1887 - 980 páginas
...long since settled and has never been contradicted, " water-supply should be uncontaminated by sewage. There is no demonstrable safety in a middle course....complete removal of disease-producing elements, whatever they may be." The presence of soluble vegetable matter is to be avoided more, however, on account of... | |
 | Connecticut. State Department of Health - 1887 - 656 páginas
...potable water. Dr. RA Smith testified before the Royal Commission of Water Supply of London, " that no one has conclusively shown that it is safe to trust...filtration or periods of time for the complete removal from water of diseaseproducing elements, whatever they may be. Chemistry and microscopy cannot and... | |
 | 1887 - 976 páginas
...long since settled and has never been contradicted, " water-supply should be uncontaminated by sewage. There is no demonstrable safety in a middle course....is safe to trust to dilution, storage, agitation, nitration or periods of time, for the complete removal of disease-producing elements, whatever they... | |
 | 1891 - 828 páginas
...proportions either in solution or suspension." And also Dr. RA Smith before • the Royal Commission: "No one has conclusively shown that it is safe to...filtration, or periods of time, for the complete removal from water of disease producing elements, whatever these may be. Chemistry and microscopy cannot and... | |
 | 1899 - 544 páginas
...conclusion as impossible. 82 AUGUST 5, 1899] 83 The former testified before the Royal Commission tbat: "No one has conclusively shown that it is safe to...filtration or periods of time for the complete removal from water of disease-producing elements, whatever these may be. Chemistry and microscopy cannot and... | |
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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... 