Ernest Howard Griffiths

Born at Brecon, 15 June 1851, son of Henry Griffiths. He was educated at Owens College, Manchester, and Sidney Sussex College, Cambridge (Sc.D., 1902), of which he was elected a Fellow and later an Honorary Fellow. In 1890 he carried out heat measurements of fundamental importance, culminating in 1893 in the determination of the mechanical equivalent of heat by the electrical method. He was elected F.R.S. in 1895. In 1902 he was appointed to the principalship of the University College …