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

Letters from Nathaniel Charles Rothschild to Philip Lutley Sclater requesting larvae of Biston Hirtaria and a live marten caught in Wales to be deposited at the Zoological Society of London