Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1918 – 1921 … 10 July 2025
Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-Upon Tyne, 1913 … 30 June 2025
Natural History Transactions of Northumberland, Durham and Newcastle upon Tyne, 1890 – 1894 … 7 May 2025