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, 1964-1966 … 17 June 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1960 – 1963 … 5 June 2025
Transactions of the Natural History Society of Northumberland, Durham and Newcastle upon Tyne 1831 … 28 May 2025
Transactions of the Natural History Society of Northumberland, Durham and Newcastle upon Tyne, 1957-59 … 27 May 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne, 1880 – 1889 … 17 May 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne 1887 – 1890 … 14 May 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne, 1890 – 1894 … 7 May 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1972- 1981 … 7 May 2025