|BGS image ID: P575833|
Worked at igneous and structural problems in the Eastern Highlands. He was the first to recognize and map zones of progressive metamorphism in the Dalradian of North-East Scotland, the 'Barrovian Zones'. Each zone was identified by the appearance of a set of distinctive index minerals. His work led to the present concept of metamorphic grade.
Later in his career he became the District Geologist for London with a particular interest in water-supply and in the construction and maintenance of railways.
Another picture when he was in Scotland: The Bandits Lair.