Transactions of the Natural History Society of Northumberland, Durham and Newcastle-upon-Tyne, 1951 … 23 June 2025
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, 1966 -1967 … 12 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 and Tyneside Naturalists’ Field Club 1894-1899 … 1 June 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, 1877 – 1879 … 17 May 2025