Letter from E H Tong regarding snow drifts at Whipsnade, the arrival of a female Pygmy Hippo presented to The Queen, and a parasite that had been causing trouble in the Grevy's Zebra
Letters from Robert Hesketh to David William Mitchell regarding an estimate of work done to animal houses and enclosures at the Zoological Society of London, including the Terrance Dens and the Hippopotamus House
Letter from John Green to David William Mitchell regarding the transport of the hippopotamus on the 'Ripon' for the Zoological Society of London
Correspondence with Martin Charteris regarding a Pygmy Hippopotamus from President Tubman
Correspondence between Hamet Saffi Canaana, the Keeper of Obaysch, and David William Mitchell regarding his service at the Zoological Society of London, with receipts
Letters from Sir Frederick William Adolphus Bruce to David William Mitchell regarding the gift of a female hippopotamus from Egypt for the Zoological Society of London