Economic historian Gregory Clark, a Glaswegian now at UC Davis, has been extending a main channel of British science into the 21st Century. His new book, The Son Also Rises: Surnames and the History of Social Mobility is another milestone in the revitalization of the human sciences after their long, self-inflicted dry spell in the later decades of the 20th Century. One of the central concerns of British thinkers from the 18th Century into the mid-20th Century was the scientific study of breeding. The British agricultural revolution that began about three centuries ago led to the ...