Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1993 – 1996 … 9 August 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1972 … 20 June 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1966 -1967 … 12 June 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1972- 1981 … 7 May 2025