Weekly return of births and deaths (infectious diseases, weather) in London (and other great towns).

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Page 132 - ... huge embankment, to Barking Creek, on the Thames, 14 miles below London Bridge. With certain differences, the sewage of the south side of the Thames is amenable to the same kind of treatment. By some returns, furnished in June, 1870, by the engineer of the Metropolitan Board of Works, it appears that the average daily quantity of sewage pumped into the river Thames at Crossness was 170,934 cubic metres, and at Barking 152,808 cubic metres — equivalent to about as many tons by weight. That quantity,...
Page 301 - At the Royal Observatory ,(Greenwich, the mean height of the barometer in the week was 29'732 in.
Page 78 - ... contamination may be conveniently expressed in parts of average filtered London sewage, which, if thus completely oxidized in a river, would yield a like amount of nitrogen, in the form of nitrites, nitrates, and ammonia. For this purpose, average filtered London sewage may be taken as containing 10 parts of combined nitrogen in 100,000 parts, as deduced from the numerous analyses of Way, Hofmann, and Witt.
Page 78 - Ibs. of average London sewage. By gradual oxidation, partly in the pores of the soil, partly in the Thames and its tributaries, and partly in the reservoirs, filters, and conduits of the Chelsea Water Company, this sewage contamination had been entirely converted into comparatively innocuous inorganic...
Page 78 - London sewage. By gradual oxidation, partly in the pores of the soil, partly in the Thames and its tributaries, and partly in the reservoirs, filters, and conduits of the Chelsea Water Company, this sewage contamination had been entirely converted into comparatively innocuous inorganic compounds before its delivery to consumers.
Page 78 - The above quantity of water as supplied by the Chelsea Company had been, after its descent to the earth as rain, contaminated with sewage or manure matter equivalent to 2420 Ibs.
Page 78 - Ib. of nitrogen in the shape of nitrates and nitrites, besides 0-004 Ib. of ammonia ; whilst the total amount of combined nitrogen in every form was found to be 0'371 Ib.

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