Letters to Philip Lutley Sclater
Letters from William Yarrell regarding a heraldic question raised by Edward Turner Bennett, an unspecified dispute which had been considered at a meeting of the Council at Grosvenor Square, and a manuscript of Walcott's 'British Birds' asking Bennett to allow the dates 1784 and 1785 to stand since Walcott left Teignmouth for Chelsea in 1786 and was resident in Chelsea in 1787
Letter to J J Yealland regarding any spare ducks at the Zoological Society of London
Correspondence between M G Yearsley and George Soper Cansdale regarding the collecting of animals for the Zoological Society of London
Letter from John Yelland, apologising for not being able to bring back any small Hawaiian birds for the Zoological Society of London
Correspondence between the Yellow Fever Research Institute in Entebbe, Uganda and Geoffrey Marr Vevers regarding a shipment of Monkeys and Red River Hog for the Zoological Society of London
Correspondence between Solly Zuckerman and Lord Peyton of Yeovil regarding the educational and scientific activities of the Zoological Society of London, and government support
Report from C W F Young, Assistant Medical Officer of Health at the London County Council, to Philip Lutley Sclater regarding Regent's and Grand Junction Canals