Letter from Briton Riviere to Peter Chalmers Mitchell to propose Maurice Lyndham Walder for election to the Zoological Society of London
Letter from Count de Rilvas to Philip Lutley Sclater regarding a proposed Zoological Society in Lisbon
Letter from Julian Sorell Huxley to Jasper Ridley regarding the plans for the new Elephant House and an approach to Lord Howard de Walden regarding a donation towards the construction
Letter from the building contractors Rice and Son, to Julian Sorell Huxley regarding the construction of the new Elephant House
Letter from Alexander Louis Ricardo to Philip Lutley Sclater regarding his resignation as Fellow of the Zoological Society of London
Typescript of the By-Laws of the Zoological Society of London, revised with suggestions
Revised list of ex-enemy corresponding members with their present or last known address
Letter and table showing revised figures for animals and members of menagerie staff at the Zoological Society of London
List of returns and reports submitted to the Council and Committees of the Zoological Society of London
List of dates and names of animals that died at ZSL London Zoo, from 29 April 1851 to 28 April 1852, signed by Alexander Miller