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 Wandsworth, Metropolitan Borough]
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TABLE II.
Date. | Illuminating Power in Standard Sperm Candles. | Pressure in inches of Water. | ||
---|---|---|---|---|
April 14th, 1908 | 163 | 2.8 | ||
May 2nd, „ | 16.7 | 3.3 | ||
,, 8th, ,, | 162 | 2.6 | ||
19th, ,, | 17.4 | 3.8 | ||
June 5th, „ | 16.5 | - | ||
„ 19th, ,, | 16.8 | 3.0 | ||
July 2nd, „ | 16.7 | 30 | ||
,, 17th, | 16.4 | 3.3 | ||
August 1st, „ | 16.6 | 3.1 | ||
,, 13th, ,, | 16.2 | 3.7 | ||
„ 27th, „ | 16.3 | 4.3 | ||
September 8th, ,, | 16.0 | 4.0 | ||
„ 28th, „ | 16.8 | 3.5 | ||
October 8th, ,, | 16.0 | 3.1 | ||
„ 23rd, „ | 15.9 | 3.0 | ||
November 3rd, „ | 16.0 | 3.5 | ||
„ 21st, „ | 15.1 | 3.8 | ||
December 5th, „ | 16.1 | 3. 7 | ||
„ 30th, ,, | 15.4 | 4.2 | ||
January 16th, 1909 | 149 | 4.0 | ||
February 6th, ,, | 15.4 | 3.8 | ||
„ 23rd, „ | 149 | 3.5 | ||
March Ilth, „ | 15.3 | 2.8 | ||
„ 24th, | 15.2 | 3.4 | ||
Average for the year ended 31st March, 1909 | 160 | 3.3 |