Includes letters to EFR's daughter Erica Metcalfe. Clarke writes news of the British Interplanetary Society; discusses the scientific plausibility of Russell's novel Sinister Barrier; mentions the sale of his (Clarke's) story Against the Fall of Night; and includes a newscutting of a letter from Russell to an unidentified publication. Letters also incldue reference to Clarke's book Interplanetary Flight, his 'flying saucer' research, and his views on Charles Fort.