Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1996 -1997 … 16 August 2025
Transactions of the Natural History Society of Northumberland, Durham and Newcastle-upon-Tyne, 1950-1953 … 7 July 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1972 … 20 June 2025