London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Hackney 1910
Report on the sanitary condition of the Hackney District for the year 1910
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Chemical Examination.
| Determinations. | Results in | |
|---|---|---|
| Grains per gallon. | Parts per 100,000. | |
| Total Solid Residue dried 212. F° | 48.3 | 69.0 |
| Loss on Ignition | 17.5 | 25.0 |
| Chlorine | 4.2 | 6.0 |
| Equivalent to Chlorides (60 p.c. C1.) | 6.93 | 9.9 |
| Nitric Nitrogen | .210 | .300 |
| Equivalent to HNO3 | .945 | 1.350 |
| Nitrites | Abundance | |
| Hardness—Permanent 12.6; Temporary 11.5; Total | 24.1 | 34.4 |
| Poisonous Metals | Absent. | |
| Free Ammonia | .0896 | .1280 |
| Organic Ammonia | .0179 | .0256 |
| Oxygen absorbed at 70° F. in four hours | .3485 | .5693 |
| Behaviour of Solids on Ignition | Slight browning and slight smell of burnt vegetable matter. | |
The water was free from objectionable odour, and when kept
in a warm laboratory showed no tendency to become offensive.
The suspended matter soon settled out, leaving it clear and
bright.
The sample is much better than those submitted in former
years.
(Signed) LEO. TAYLOR, F.I.C.,
Public Analyst.
PUBLIC HEALTH (TUBERCULOSIS) REGULATIONS, 1909.
During the year 1910, there were 242 cases of tuberculosis
notified to me under these Regulations. Many of the cases were
notified more than once. The following table gives the ages and
sex of these cases:—