Copy letter from Herbert Rix, to Evan Magregor CB, Admiralty 'I have to acknowledge the receipt of your letter (M/2405) of Oct 6th, addressed to the President of the Royal Society [George Gabriel Stokes], with four enclosures, which shall be laid before the President at the first opportunity. I have the honour to be Sir Your obedient Servant Herbert Rix, Assistant Secretary, Royal Society'. 8 October 1886