is secured to the his machinery. whiffletree in the usual manner. The lower half, B, of Mr. J. Stockley, an engineer employed in the Wallsend the hook is in one piece with the ferrule, and has a down- coal district, England, has invented an appliance for secur- ward projecting lug on the end, as… … ' zation of the sulphate of nickel. The nickel is first dissolved Both parts are recessed at their sume a whirling motion, by which the water is expelled by ‘in seven to eight times its weight of aqua regia; the solution centrifugal force, and falls down D into the boiler, while the is evaporated…
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