Joseph Black
Joseph Black (1728-1799) was a celebrated Scottish chemist, born at Bordeaux, of Scotch parents. He was the discoverer of what has been called latent heat, but what is really transformed energy. He developed accurate techniques for following chemical reactions by weighing reactants and products. He served as professor of Chemistry, first in Glasgow, then in Edinburgh, where his lectures were very popular. His discoveries in chemistry were fruitful in results.