Letter from E H [Edward Hutchinson] Synge, Knockroe, Dundrum, Co Dublin, to Sir Joseph Larmor He did not write before, not knowing quite what to suggest. Professor McFadden has looked through the [William Rowan Hamilton] notebooks on vibrations and thinks that there is little in them that has not been published or superseded. However they contain a wealth of detail and he would not want a judgement to be made on his opinion alone. Synge's brother [John Lighton Synge] hopes to return to Dublin from Canada next year and he would be able to read the material. He asks Larmor's opinion on producing one volume on dynamics and rays, which would cost around £100. Synge thinks that his brother would be able to do the 'brute work' but he asks if Larmor might write an introduction. He believes it would be a pity if Larmor's work on Kelvin and Stokes might prevent him from contributing. The time would be right, with the current interest in Relativity, and Larmor might show how and where Hamilton's work differed from [Albert] Einstein's. 13 October 1923