mentor Washburn. This time he stayed for good, remaining a professor and then an emeritus until his death.

Howell's early work focused on Homo neanderthalensis for which he made trips to Europe beginning in 1953. His later work brought him to Africa, the cradle of mankind. From 1957 to 1958 he worked at Isimila, Tanzania, where he recovered enormous hand-axes dating from the Acheulean (260,000 years old). Continuing his