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IV.—Water Supply from the Bagshot and other Strata. (No. 2.)
Published online by Cambridge University Press: 01 May 2009
Extract
During the year 1883 I gave some account, in the pages of this Magazine, of the peculiarities of the water drawn from the Bagshot strata of the London Basin. The most important conclusion drawn in that paper from the evidence adduced was the great difference in the quality of the water according as it is obtained either (a) from the bright ferruginous sands of the Upper Bagshots, or (b) from the Middle or Lower Bagshot strata, which are all contaminated (more or less) by vegetable matter in various stages of decomposition. So far as the evidence in my possession a year ago seemed to carry me, I felt warranted in making the following generalization: “The whole of the well-water of the district which common human experience pronounces wholesome is obtained from the Upper ferruginous sands.” This has been confirmed by additional facts more recently learnt.
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References
page 17 note 1 Vide Geol. Mag. 1883, Dec. II. Vol. X. pp. 404–413.Google Scholar
page 18 note 1 See communication by the author to the Geologists’ Association, “On Bagshot Strata of the London Basin,” Proc. Geol. Assoc. vol. viii. No. 3.
page 19 note 1 “Report of Mr. George Eennie on the Supply of Water to be obtained from the District of Bagshot,” London, 1860.
page 20 note 1 pp. 15, 16 (ibid.).
page 22 note 1 Vide Geology of Oxford and the Valley of the Thames, p. 427.
page 23 note 1 Comp. my paper, On the Coloration of some Sands, etc., in the Report of the British Association, 1883.
page 23 note 2 I am indebted to the courtesy of Sir George Bannerman, Bart., in bringing the facts connected with the Brackley well under my notice.
page 24 note 1 Comp. Wanklyn’s Water Analysis, 5thed. 1879, p. 49.