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 District, The Board of Works (Clapham, Putney, Streatham, Tooting & Wandsworth)]
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TABLE III.
Winter . . Jan., Feb., March. | Spring . . April, May, June. | Summer . . July, Aug., Sept. | Autumn . . Oct., Nov., Dec. | Temperature of | Elastic Force of Vapour. | Weight of Vapour in a Cubic Foot of Air. | Degree of Humidity. | Reading of Barometer. | Weight of a Cubic Foot of Air. | Rain. | Reading of Thermometer on Grass. | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Air. | Evaporation. | Dew Point. | Air— Daily Range. | Number of Nights it was | Lowest Reading at Night. | Highest Reading at Night. | |||||||||||||||||||||||
Mean. | DitF. from Average of 109 years. | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Mean (Sat.=100). | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Mean. | Diff. from Average of 39 years. | Amount. | Diff. from Average of 65 years. | At or below 30". | Between 30° and 40°. | Above 40°. | ||||||
1880. | ° | ° | ° | ° | ° | ° | ° | ° | ° | in. | in. | grs. | gr. | in. | in. | grs. | grs. | in. | in. | Sums. | ° | ° | |||||||
YEAR. | 49.4 | +0.8 | 0.0 | 47.0 | +0.4 | 44.4 | +0.8 | 15.2 | —0.7 | 0.305 | +0.015 | 3.4 | +0.1 | 84 | + 2 | 29.810 | +0.037 | 542 | +1 | 29.8 | +4.4 | 100 | 119 | 147 | 13.5 | 60.3 | |||
First Quarter | 39.8 | + 1.0 | —0.1 | 38.0 | 0.0 | 35.6 | +0.2 | 12.4 | + 0.6 | 0.211 | +0.004 | 2.4 | 0.0 | 85 | + 1 | 29.925 | +0.162 | 556 | +4 | 3.2 | -1.8 | 51 | 32 | 8 | 13.5 | 49.1 | |||
Second do. | 52.4 | +0.1 | —0.5 | 49.0 | —0.2 | 45.5 | +0.1 | 18.8 | —1.2 | 0.309 | + 0.002 | —0.1 | 78 | + 2 | 29.781 | —0.001 | 538 | 0 | 5.0 | —0.9 | 17 | 38 | 63 | 22.8 | 53.2 | ||||
Third do. | 61.4 | +1.7 | + 1.2 | 58.5 | + 2.2 | 56.0 | +3.1 | 17.9 | —1.8 | 0.449 | +0.045 | 5.0 | +0.5 | 83 | +5 | 29.783 | —0.013 | 538 | —2 | 8.8 | +1.4 | 0 | 5 | 87 | 37.2 | 60.3 | |||
Fourth do. | 44.0 | +0.3 | —0.6 | 42.4 | —0.2 | 40.4 | —0.2 | 11.6 | —0.2 | 0.252 | —0.007 | 2.9 | —0.1 | 88 | + 1 | 29.749 | 0.000 | 547 | + 1 | 12.8 | + 5.7 | 32 | 44 | 16 | 16.3 | 50.8 |
In this Table, + and — respectively signify that the numbers in the preceding column are above or below the average to the extent of the quantities to which these signs are prefixed.