“An Underground Building at Midhouse, Orkney; Two Urns Found at Lintlaw, Berwickshire; And the Excavation of a Cairn at Drumelzier, Peeblesshire”. 1931. Proceedings of the Society of Antiquaries of Scotland 65 (November): 357-72. https://doi.org/10.9750/PSAS.065.357.372.