Is Burghead on the Moray Firth the Winged Camp of Ptolemy? With remarks on the origin of some popular opinions regarding the ancient geography of North Britain, the value to be attached to Ptolemy's tables and the probable sources of his information ... Reprinted from the Archaeological Journal, vol. XLVIII.
Macdonald, James, F.S.A.Scot.
Exeter :  For private circulation, 
1892.