Letter from L F [Lewis Fry] Richardson, St Keyes, Holmesdale Road, Hampton Wick, to [Joseph] Larmor He gives thanks for Larmor's referece to [Erik Ivar] Fredholm's paper which was sent to Dr. [Richard Tetley] Glazebrook on 8 April. The Royal Society Librarian and Richardson have searched for it, but although they found many papers by Fredholm, none answered to Larmor's description. Richardson thinks that because Fredholm used infinite determinants, his method must differ from Richardson's, who explains his technique. 17 May 1909