DEWAR, James. 20261



Autograph Letter Signed, to Lord Avebury, unable to accept the invitation to breakfast. A fine one page example, 7 x 4 inches. Royal Institution, 1 April 1908[?]. Sir James Dewar (1842-1923), Scottish chemist and physicist, discovered cordite, accomplished the liquefaction of hydrogen (1898), and invented the vacuum flask.