An copy by James Barr in 1865 of a portrait of Joseph Black (1728-1799) by David Martin. Black was a chemist who is best known for the discovery of carbon dioxide and his work on latent and specific heat and the development of the study of thermodynamics. He was Professor of Medicine at the University of Glasgow, 1756-1766 (where he befriended the mathematical instrument maker James Watt), and President of the Faculty of Physicians and Surgeons of Glasgow between 1759 and 1761 and again between 1765 and 1766.
Reference: RCPSG 1/12/7/37
Reproduced with the permission of the Royal College of Physicians and Surgeons of Glasgow
carbon dioxide, chemists, Faculty of Physicians and Surgeons of Glasgow, latent heat, medicine, portraits, Royal College of Physicians and Surgeons of Glasgow