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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| 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 Nghts it wag | Lowest Reading at Night. | Highest Reading at Night. | ||||||||||||||||||||
| Mean. | Diff. from Average of 115 Years. | Diff. from Average of 45 Years. | Mean. | Diff. from Aveage of 45 Years. | Mean. | Diff. from Average of 45 Years. | Mean. | Diff. from Average of 45 Years. | Mean. | Diff. from Average of 45 Years. | Mean. | Diff. from Average of 45 Years. | Mean (Satn=100). | Diff. from Average of 45 Years. | Mean. | Diff. from Average of 43 Years. | Mean. | Diff. fiom Average of 45 Years. | Amount. | Diff. from Average of 72 Years. | At or below 30 | Between 30° & 40°. | Above 40°. | |||
| 1886. | ° | ° | ° | ° | ° | ° | ° | ° | ° | in. | in. | grs. | gr. | in. | n. | grs. | grs. | Sums, in. in. | Sums. | o | ° | |||||
| YEAR. | 48.7 | +0.1 | —0.7 | 45.9 | -0.6 | 43.0 | —0.6 | 15.6 | +0.0 | .291 | —.004 | 3.3 | —0.1 | 81 | —1 | 29.734 | —.024 | 542 | 0 | 24.21 | -1.85 | 90 | 141 134 | 15.0 | 58.2 | |
| First Quarter | 36.5 | —2.3 | —3.5 | 34.8 | —3.3 | 32.3 | —3.2 | 10.6 | —1.2 | .183 | —.026 | 2.2 | —0.2 | 85 | + 1 | 29.737 | + .027 | 566 | +3 | 5.38 | + 0.14 | 52 | 30 | 8 | l6.5 | 47.1 |
| Second do. | 52.5 | +0.2 | —0.4 | 48.8 | -0.2 | 45.2 | +0.2 | 19.7 | —0.3 | .303 | —.002 | 3.4 | —0.1 | 77 | —1 | 29.769 | -.012 | 538 | 0 | 5.93 | +0.14 | 8 | 50 | 33 | 18.8 | 50.2 |
| Third do. | 61.2 | + 1.5 | +0.7 | 57.1 | + 0.8 | 53.6 | + 0.5 | 20.6 | +0.9 | .412 | + .000 | 4.6 | —0.0 | 77 | —1 | 29.800 | + .014 | 529 | -1 | 4.87 | —2.43 | 0 | 19 | 73 | 31.0 | 58.2 |
| Fourth do. | 44.6 | +0.9 | +0.5 | 43.0 | +0.4 | 41.0 | +0.5 | 11.7 | +0.7 | .265 | + .007 | 3.0 | -0.1 | 87 | —1 | 29.624 | -.125 | 541 | —3 | 8.03 | + 0.30 | 30 | 42 | 20 | 150 | 48.1 |
III this Table, + and — respectively signify that the number in the preceding column are above or below the average to the extent of the quantities to which these signs are prefixed.