Transactions of the Natural History Society of Northumberland, Durham and Newcastle-upon-Tyne, 1956 – 1957 … 17 August 2025
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, 1993 – 1996 … 9 August 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1985 – 1991 … 22 July 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1908 – 1911 … 21 July 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1918 – 1921 … 10 July 2025