letters from Sir John Bland-Sutton regarding engravings and plates taken by Dr Knox
Letter from St J Bolkay regarding Joan Procter leaving the British Museum
Letter from Eirene A Botting, thanking Joan Procter for her congratulations, snakes and her work for the government
Letters from Edward George Boulenger to Joan Procter regarding Salamander larvae, attendance at Zoological Society of London Scientific Meetings, the purchase of alligators, the transformation of axolotl, snakes for sale, a reference to a crab-eating frog, her exhibition of the batrachia in the public galleries, and the death of reptiles deposited by Joan Procter
Letter from George Albert Boulenger congratulating Joan Procter on her appointment at London Zoo
Correspondence with Roderick Brinkman regarding his flock of homing budgerigars
Correspondence regarding the importation of wild animals and birds from Abyssinia including Gelada Baboons and Royal Starlings
Correspondence with Buckingham Palace staff regarding the return of flamingos to Buckingham Palace
Letters from Richard Higgins Burne of the Royal College of Surgeons of England, regarding a copy of Joan Procter's paper on pit vipers and her paper on T. loveridgii
Letters from Eric Burrows regarding tickets for entrance to London Zoo, and congratulations on her appointment. He had found food for her salamanders when Joan Procter lived at Kensington