He was a prolific writer, with a prodigious knowledge and memory, and a most ingenious and confident critic; and his work not only dominated the field of archaeological criticism but also raised its standing both at home and abroad.
The parish of Mortlach, in which Dufftown is situated, is rich in archaeological and historical associations.
Beit Jibrin is in the centre of a district of great archaeological interest.
There is an archaeological museum with prehistoric antiquities from the lake-dwellings on an island in the Lake of Varese.
His archaeological work included the investigation of lake dwellings and other prehistoric structures; he went with Schliemann to Troy in 1879, fruits of the expedition being two books, ZurLandeskunde der Troas (1880) and Alt-trojanische Gr p ber and Schad (1882); in 1881 he visited the Caucasus, and on his return published Das Graberfeld von Koban im Lande der Osseten; and in 1888 he accompanied Schliemann to Egypt, Nubia and the Peloponnese.