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DEWER, Sir James (18442-1923) Scottish chemist and physicist who co-discovered cordite. He accomplished the liquefaction of hydrogen (1898) and invented the vacuum flask. Autograph letter signed on the imprinted stationery of the Royal Institution of Great Britain stationery, 10 April 1904. To Lord Avebury, Dewer writes in part; “I enclose some Sulphate of Cobalt which you will be able to use….” He concludes discussing the strength of the solution. A very good one page example.......................$295.00
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