Includes letters: (fols. 3-9) to Sir Austen Chamberlain, 1926-37 (fols. 10-66) to Arthur Henderson, 1929-42, including (fols. 28-30) minute by Selby concerning proposed politico-economic department, Dec. 1930 (fols. 57-65) account by Selby of the background to the July 1931 crisis, Nov. 1942 (fols. 67-71) to Rufus Isaacs, 1st…