Plan showing the revised layout and elevations at the Main Gate of ZSL London Zoo
Proposed alterations to the lavatories at the Mappin Pavilion
Paper describing the history and design of the Mappin Terraces at ZSL London Zoo
Letter from Mrs E E Mappin regarding the estate of John Newton Mappin and authorising the payment for completing the work on the Mappin Terraces at the Zoological Gardens
Letter from William Martin, Secretary of the Bristol and Clifton Zoological Gardens, to John Barlow regarding a specimen they held of an Active Gibbon which they offered for sale to the Zoological Society of London
Memo on the subject of Dr Allen's letter dated July 7th 1930 by the Director of the Aquarium
Memoranda from the Superintendent of Whipsnade Park to the Director and Permanent Secretary of the Zoological Society of London regarding Down lands adjoining Holly Frindle, Dr Frank Yates and Mrs Yates and water supply