High Quality Content by WIKIPEDIA articles! Henry Stephens Salt (20 September 1851–19 April 1939) was an English writer and campaigner for social reform in the fields of prisons, schools, economic institutions, and the treatment of animals. He was a noted ethical vegetarian, anti-vivisectionist,socialist, and pacifist, and was well known as a literary critic, biographer, classical scholar and naturalist. It was Salt who first introduced Mahatma Gandhi to the influential works of Henry David Thoreau.