Letters to Sir Joseph Norman Lockyer The file contains 13 letters from the following correspondents to Lockyer: Hooker [Sir Joseph D Hooker] 1869; William Pengelly 1869; J J S [Professor J J Sylvester] 1869; A. Macmillan 1871; [7th] Duke of Devonshire [Andrew Cavendish] 1873; Dr H Helmholtz 1874; Alexander Macmillan 1877; Thomas A Edison 1878; J J Thomson 1899; R T Glazebrook of the National Physical Laboratory 1903; Henry Roscoe 1907; E Rutherford 1914; and George A Macmillan 1919. Also included is a typescript 'List of English gentleman who are invited to make nominations of candidates for the Nobel prizes in Physics and Chemistry for the year 1904'. 1869-1919