Copy letter from F A Joule to Sir James Dewar 'Dear Sir, Sir Joseph Larmor left for Scotland last night & I have opened your letter to him, as he left the matter of Prof Armstrong's paper in my hands. I am sending your letter on to Sir Joseph, who is stopping until the end of this week with Sir Andrew [at Ardkinghus]. I believe Prof Armstrong is on his way to [cauade].' 28 July 1909