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 Hanover Square, The Vestry of the Parish of Saint George]
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Table VIII
Date of Collection | April 30. | May 29, 30. | June 30. | July. August5. | August 31. | Sept. 30. | Oct. 31. | Nov. 30. | Dec. 31. | Jan. 30. | Feb. 29. | March 31. | Average. | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chelsea Company's Water. | Total Solid Matters | 34.4 | 31.2 | 27.6 | 27.6 | 23.2 | 35.4 | 38.8 | 39.2 | 32.8 | 34.0 | 33.2 | 86.0 | 32. 8 |
17.2 | 11.2 | 10. 0 | 12.0 | 11.2 | 15.6 | 11.2 | 11.2 | 15.8 | 12.8 | 13.6 | 16.8 | 13.2 | ||
17.2 | 20.0 | 17.6 | 15.6 | 12.0 | 19.8 | 27.6 | 28.0 | 17.0 | 21.2 | 19.6 | 19.2 | 19.6 | ||
Chlorine | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | |
Equivalent to Common Salt | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | |
Saline Ammonia | 1.4 | 1.4 | 0.8 | 2. 2 | 1.4 | 1.8 | 3. 6 | 1.4 | 2.0 | 0.8 | 1.4 | 2. 2 | 1.7 | |
Organic Ammonia | 11.2 | 10.4 | 10.2 | 8.6 | 12.6 | 9.6 | 20.8 | 10.6 | 11.4 | 9.2 | 13.6 | 8.6 | 11.4 | |
Grand Junction Co.'s Water. | Total Solid Matters | 32.4 | 31.2 | 28.0 | 24.4 | 22.0 | 30.8 | 29.8 | 38.4 | 34.0 | 37.6 | 31.6 | 33.6 | 31.1 |
13.2 | 10.4 | 11.6 | 10.4 | 10.6 | 13.6 | 9.4 | 17.2 | 10.8 | 13.2 | 10.8 | 13.6 | 12.0 | ||
6. Fixed | 19.2 | 20.8 | 16.4 | 14.0 | 11.4 | 17.2 | 20.4 | 21.2 | 23.2 | 24.4 | 20.8 | 20.0 | 19.1 | |
Chlorine | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | |
Equivalent to Common Salt | 2.96 | 2.96 | 2.96 | 2.96 | 2. 96 | 2.96 | 2. 96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | |
Saline Ammonia | 1.4 | 1.4 | 0.8 | 0.8 | 0.8 | 1.5 | 3.4 | 1.4 | 1.0 | 1.6 | 1.4 | 1.6 | 1.4 | |
Organic Ammonia | 9.2 | 11.6 | 11.6 | 7.8 | 10.4 | 11.0 | 23.0 | 14.6 | 14.8 | 9.8 | 12.6 | 9.4 | 12.1 |