8,000 inhabit- 85 grammes of metallic cadmium are dissolved in a ants, was formerly supplied with water from artesian they must be entirely removed. wells, but as the number of’ these increased, many of mixture of 2,180 grammes of concentrated nitric acid There is then made a solution of 255… … into a sheet. Both the cast and the rolled Section Through Bottom of Pipe of Sulphur Well. anodes give good results. When the above solution is used for elec- Since that time many more wells have been sunk and troplating, there may be obtained a faultless deposit all the metal is dissolved, 2.3…
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