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, 1980 – 1986 … 8 August 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne, 1877 – 1879 … 17 May 2025