The Popular recreator. A key to in-door and out-door amusements .. (1873)
London, New York [etc.] Cassell, Petter & Galpin · leaf 574
TO PREPARE THE FIGURE—THE MIE elastic mould described in our last article, being madeof a material soluble in water, has this great disad-vantage, that if the copper deposit be not formed uponit quietly, all the fine features of the impression will be blurred agglomeration of grains of metallic… … Fig. 1.—ADAM AWAKENING. away while it is soaking in the sulphate solution. The youngelectrician might be tempted to hasten the process of depo-sition, by the means now at his command, viz., increasing theintensity of his battery power, but such a course would be onno account advisable. We have…
Amusements · Games · Sports
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