Letter from William Ridgeway, Flendyshe, Fen Ditton, Cambridge, to [Joseph] Larmor He invites Larmor to lunch with his brother-in-law Arthur Samuels on Sunday. Two Welsh steam ships have been sunk by U-boats, four of which are off Holyhead. Compulsory service is to be introduced for unmarried men. He gives good wishes for the New Year. [January 1916]