10 THE ANALYST. THE PUBLIC WATEE SUPPLIES OF ENGLAND. VALUATION, ACCORDING TO WIGNER’S VALUATION SCALE,” OF THE ANALYSES PUBLISHED IN the following table me give the average valuation of those public water supplies reported on this month from January to June, and the valuation of the July, August, September, October, November, and December waters. THIS MONTH. -xOaNO? x m .m*m * r n b r ? r n ~ r n r n O t + *mc- -lo3 * w m m *mrlc;1CIsrla~mm ‘ a m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - .Okving to considerations of space we have omitted from this table those places as to which we have published no analyses during the past five months. In the case of the Metropolitan waters, the average valuation of the suppIieg for Deoember show an increase of usarly 6 over the valuation for November, but the increase is mainly in the supplies of the compmies drawing from the rivers Thames and Lea. The Kent water shows an increase of 3 in value, the New Biver water an increaseTHE ANALYBT. 11 in the valuation of only one, while the other companies have increases ranging from 3 in Grand Junction to I in Lambeth. Among the provincial supplies reported on this month the most pure are Rochdale and Whiteharen with a valuation of 7 Gach, Canterbury 14, Dublin and Swansea 15 each, and Edinburgh 19.In these there is scarcely any notttble change from last month, with the exception of Edinburgh which ahows it marked improvement. Following these best waters we have Croydon with a valuation of 21, Exeter 22, Bristol 23, Learnington 24, Cambridge, Portsmouth, and Shrewsbury 25 each, Bolton and Maidstone Public Conduit 26 each, Manchester 27, Brighton and Ipswich 28 each, Bir- mingham 29, and Grantham 30. In these figures the only change of note is the remark- able improvement in the Birmingham mpply. The valuations of Bury, Darlington, King’s Lynn, Newcastle, Norwich, Rugby, and Wolverhampton show an improvement over the valuations of last month, while, on the other hand, the waters of Bradford, Hastings, Leicester, Liverpool, Maidstone Company, Newark, Nottingham, Reading, Salford, and Southampton give less satisfactory indications, the Maidstone and Salford waters showing much higher valuations than previously owing to the turbidity of the samples.