|BGS image ID: P536925|
Frank Perret started out as a electrical engineer but later turned to volcanology spending 10 years studying Mount Pelée, Martinique from the start of the 1929-1932 eruption.
The image is from the The Archibald Gordon MacGregor Archive. In 1936 the Royal Society in collaboration with the Colonial Office organized an expedition to Montserrat to study the geology and investigate the earthquakes and soufrière activity that had caused damage in the previous two years. The personnel on the expedition were Dr C F Powell and Dr A G MacGregor.