Letter from [Peter] Chalmers Mitchell, Zoological Society of London, Regent's Park, London, N.W, to [Robert] Harrison, The Royal Society, Burlington House, London, W Regrets his inability to attend a committee meeting due to a prior engagement with a council meeting. Discusses the importance of continuing ongoing projects despite potential income reductions, citing the inefficiency and increased distress associated with halting and restarting projects. 17 October 1914