West Middlesex 12 5 26.62 .176 .028 .001 .124 .153 930 1.83 19 4 3.0 Southwark 12.7 26.68 .192 .030 .001 .125 .155 940 1.83 20.0 3.3 Grand Junction 11. 4 27.00 .186 .033 .001 .129 .164 990 1.83 20 0 3.3 Lambeth 12.0 27.88 .196 .037 .001 .144 .181 1120 1.87 20.0 3.4 OTHER SOURCES. New River 12.2 26.02 .087 .015 .001 .146 .162 1150 1.67 20.1 1.5 East London 11.8 27.13 .153 .027 .001 .076 .104 560 2.04 19.3 27 Kent 12.4 40.36 .057 .012 .000 .371 .383 3 40 2.48 28.1 1.0 But it is not to Professor Frankland alone that we are now indebted for information respecting the water we drink, many very interesting facts being supplied by Major Bolton, R.E., the water examiner appointed by the Board of Trade, under the provisions of the Metropolis Water Act, 1871. Major Bolton’s reports, which, by his courtesy, I receive every month, afford information on all points relative to the machinery for water supply, and to the provisions already made, or in progress, for giving a constant supply, the main object of the Act; and which, I suppose, we may, at some remote future, hope to obtain. As the information in question is not generally accessible, I make no apology for presenting a _resumé_ of it on this occasion. And, first, with respect to the constant service, we learn that the West Middlesex Company are giving constant supply to a number of houses, on the application of the owners, and are fully prepared to extend the supply when called upon. Extensive works and additional engine power of 120 horse power are in course of construction at Hampton.