Letter from [Peter] Chalmers Mitchell, Zoological Society of London, Regents' Park, London, N.W, to The Assistant Secretary, Royal Society, Burlington House, W Acknowledges receipt of previous correspondence and encloses a cheque for the donation of £45 from the Royal Society to the Zoological Society for the cost in preparation of the Index Zoologicus No 2 [enclosure not present]. 1 March 1912