Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to Professor A [Alfred] Fowler, FRS Advises that the Council of the Royal Society has arranged a meeting for 5 February for discussion on the Theory of Relativity, and he would be glad if Professor A [Alfred] Fowler, FRS, could take part and hopes he will with [Sir Frank Watson] Dyson, FRS, [Astronomer Royal] explain the astronomical and spectroscopic evidence strands. Says Sir Dyson will cover the orbit of Mercury and the deflection of light, and suggests Professor Fowler might explain the experiments of [John] Evershed, FRS, and St.John. 7 January [1920]