On the Earlier Antiquities of the District of Cromar, in Aberdeenshire: including a Notice of an ’Eirde House,’ or underground chamber, recently discovered on the Farm of Culsh, in the Parish of Tarland, and of another at Drumnahoy, near Castle Fraser. PSAS. 1855;1:258-264. doi:10.9750/PSAS.001.258.264