 In 1940 he was appointed a geologist in the Mining and Geological Department of Kenya, as part of the wartime strategic planning programme.He surveyed widely throughout Kenya producing reports for the Geological Survey of Kenya on the areas of Malikisi, North Kavirondo, Nyeri, the Migori Gold Belt, and Nanyuki and Maralal.His studies extended into the geometry of the orogenic belts of East Africa and the volcanism that produced the Rift System.