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, 1980 – 1986 … 8 August 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1914 – 1916 … 6 July 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1966 -1967 … 12 June 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne, 1877 – 1879 … 17 May 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne, 1880 – 1889 … 17 May 2025