By Christopher Hamlin
A technology of Impurity is the 1st precise historical past of the mobilization of chemistry (and later bacteriology) to fulfill the general public call for for solid water. It additionally deals a viewpoint on figuring out how smooth actual sciences are tapped to make sure public stable.
A technology of Impurity explores the social framework during which chemists got here to paintings on difficulties of water caliber, the options they used to review the surroundings, their conclusions and their position in facing a worried public.
For historians of technology, researchers and planners within the water undefined.
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Additional resources for A Science of Impurity: Water Analysis in Nineteenth Century Britain
15 Lucas, Essay, I, p 164. See also Linden, Treatise, pp 1-2. 16 On Lucas and Bath see W J Williams and D M Stoddart, Bath--Some Encounters with Science (Bath: Kingsmead Press, 1978), pp 82-3; Noel G Coley, 'Physicians and the Chemical Analysis of Mineral Waters' 133-5. 17 Lucas, Essay, III, pp 246-7, II, p 103. 18 Ibid, III, pp 245-6. 19 Linden, Treatise, p 110. 20 Lucas, Essay, II, pp 13-16, 3-4, I, pp 135-6. 21 Linden, Treatise, p 6. 22 Coley, 'Physicians and the Chemical Analysis of Mineral Waters,' p 124.
Chem. Soc. 12 (1859): < previous page page_45 next page > < previous page page_46 next page > Page 46 52-4; Thomas Graham, A W Hofmann, and W A Miller, 'Chemical report on the supply of water to the metropolis,' pp 378-9; J T Way in Royal Commission on Water Supply, 1868-9, App. F, p 36; L Playfair in GBH. Report on the Supply of Water to the Metropolis, App III, p 77. 70 A W Hofmann, 'Analysis of the Saline Water of Christian Malford near Chippenham,' Q. J. Chem. Soc. 13 (1860): 80-4; H M Noad, 'Analysis of the Saline Water of Purton near Swindon, North Wilts,' Q.
Using a modification of Bergman's process, he found the Dunblane water to contain sodium chloride, a small amount of calcium chloride, and calcium sulphate. But these results seemed inconsistent with the purgative effects claimed for the water. Sodium chloride and calcium sulphate were medically inactive; calcium chloride was active yet present in too small a concentration to explain the water's effects. 53 Murray took the anomaly as an indication of the need for a reexamination of assumptions about the dissolved state.