Report on the quality and quantity of the water supplied to the metropolis in the year 1866, as compared with the year 1851 : and remarks on the advantages and difficulties of a constant supply / by H. Letheby.

  • Letheby, H. (Henry), 1816-1876.
Date:
1866
Catalogue details

Licence: Public Domain Mark

Credit: Report on the quality and quantity of the water supplied to the metropolis in the year 1866, as compared with the year 1851 : and remarks on the advantages and difficulties of a constant supply / by H. Letheby. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    14/18 (page 14)
    No. II.—Composition and Quality of the Metropolitan Waters, in the Year 1851, when the Water was not Filtered. FROM THE REPORT OF THE GOVERNMENT COMMISSION ON THE CHEMICAL QUALITY OF THE SUPPLY OF WATER TO THE METROPOLIS, IN 18*51. Population, 2,362,236. Average Daily Supply 45,885,900 gaUons==19'4 gallon* per head. Hardness. NAMES OF il Solid atter <m 11 nr> til ill'li• ■° § si disable ■ganio itter. g i? li E ^ s* WATER COMPANIES. o ffl M S3 8 o 4r<8 «fl H grains. grains. grains. degrs. degrs. gallons. Thames Water Companies. 21-72 3-07 14-0 3,541,700 22-67 2-75 14-6 5-5 3,334,000 Southwark and Vauxhall .. 21-08 1-51 15-0 6,013,700 21-28 2-38 14-4 3,940,700 20-40 2-59 14-2 3,077,300 Other Companies. 29-71 2-61 16-0 1,079,300 j 19-50 2-79 14-9 4-1 15,435,600 23-51 4-12 15-0 9,036,000 « The loss by ignition represents a variety of volatile matters, as well organic matter, as ammoniaeal salts, moisture, and the volatile constituents nitrates and nitrites.