<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/RR/67/171" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Letter from the Ministry of Supply, 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</dc:title>
  <dc:description>Requests three copies of the paper. 

[Both papers published in Proceedings of the Royal Society A, 1946].

Endorsed on recto as received 8 July 1940.</dc:description>
  <dc:date>6 July 1940</dc:date>
</rdf:Description>