Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for London, City of]
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Elevation in feet above Trinity High Water. | Epidemics of | |||
---|---|---|---|---|
1849. | 1854. | East & South-East Districts, 1866. | Mean. | |
Under 3 | 146 | 108 | 167 | 140 |
3 to 10 | 89 | 94 | 89 | 91 |
10 „ 20 | 60 | 50 | 88 | 66 |
20 „ 40 | 62 | 32 | 26 | 40 |
40 „ 60 | 45 | 16 | 17 | 26 |
60 „ 80 | 25 | 27 | 4 | 19 |
80 and. over | 15 | 13 | 0 | 9 |
All London | 62 | 46 | 56 | 55 |
So that, taking the mean of the mortality in
London at different elevations, there was but
one death from cholera in a thousand of the
population residing at a height of 80 feet or
more above the river, while there were fourteen
per thousand among those who lived at the level of
it. In the intermediate stages the death-rates are
inversely proportional, and with an increasing
ratio, for they are in the proportion of 81, 66, 10,
7 and 4 for every 10 feet from the level of the
river. This fact was the subject of able comment
by Dr. Farr, in his report to the Registrar-General
on the cholera epidemic of 1849 and 1854; and he
concluded his remark by saying that "no such
fixed relation is formed between the density of the