Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 140
stock, for whenever or wherever it ismade, the remark is universal, if he has healthto enable him to devote his time to teaching theDaguerrean art he could most assuredly find timeto perfect a process that would yield him one hun-dred lold greater profits, and in much less time.The remark is quite… … HAT curious metal,platinum, and also pal-ladium, possesses a pro-perty of maintaining aslow combustion, whichhas been rendered avail-able by the discoveryof the safety-lamp to avery important pur-pose. If we take a coilplatinum wire, and, havingado it red-hot, plunge itto an explosive…
Photography · Art and photography
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