Letter from Geoffrey Ingram Taylor, on two papers 'The diffraction of sound pulses I. Diffraction by a semi-infinite plane' and 'The diffraction of sound pulses II. Diffraction by an infinite wedge' by Frederick Gerard Friedlander to J D Griffith Davies, Assistant Secretary of the Royal Society The changes proposed by the referee are so small that it may not be worth implementing them. [Both papers published in Proceedings of the Royal Society A, 1946]. 30 May 1940