Teaching and research interests have been across a spectrum of metamorphic and igneous petrology, mineralogy and geochemistry. Recent publications are predominantly on melt infiltration and percolation in mantle peridotites, partition coefficients, geochemistry of diamonds (C isotope and N concentrations), and mineral inclusions in diamonds (particularly with respect to deep 300-800km mantle mineral assemblages). I have been extensively involved (1987 to present) with the development in Edinburgh of NERC Ion Microprobe (SIMS) facilities for Earth and Environmental Sciences in the UK, and the establishment of EMMAC (Edinburgh Materials and Micro-Analysis Centre). Earlier research principally involved structure, mineralogy and phase equilibria in pelitic and basic metamorphosed rocks from the Scottish Highlands. Research in the Scottish Highlands led to participation in the publication of field guides to Barrow's Zones in the eastern Scottish Highlands and to the Ballachulish Igneous Complex and aureole in the western Highlands.Ben has served on the Councils of the Edinburgh Geological Society and the Mineralogical Society of Great Britain and Ireland, and was chairman of the Metamorphic Studies Group of the Geological Society and Mineralogical Society in 1983-85. He was principal organiser of the Goldschmidt Conference in Edinburgh in 1994, and has been a member of the organisation committees of the Goldschmidt Conference in Toulouse in 1998, and the International Mineralogical Association Meeting in Edinburgh 2002. He has served on several NERC National committees, and was a member of the assessment panel for Earth and Environmental Sciences in the 2001 UK Research Assessment Exercise. In 2006-2008 I served as President of the Mineralogical Society of Great Britain and Ireland. In 2009, I gave the Hallimond lecture of the Mineralogical Society on “Diamond formation in the deep mantle”, and was awarded the Clough Medal of Edinburgh Geological Society in 2011.