The biography of a highly regarded naturalist at the University of Colorado in the early twentieth century, culled from the subject's own autobiographical writings. In this book, William A Weber pulls together pieces of the life of T D A 'Theo' Cockerell, a man who was an internationally known scientist, a prolific writer, and a highly regarded teacher at the University of Colorado. The elder brother of the noted scholar Sir Sydney Cockerell, Theo laboured in relative obscurity in America while his brothers and their families were basking in the limelight of smart British society. Despite his alienation from his elite background, he nevertheless became a great teacher, a mentor, a kindly artist and writer of rhymes for children, and the greatest specialist on bees in the world. His contribution to the understanding of wild bees is monumental -- he catalogued over 900 species in Colorado alone, and he assiduously collected them wherever he travelled. Pieced together from TDAs little-known autobiographical writings, this book demonstrates this extraordinary individual's tremendous breadth of interest, competence, and talent. It will be of interest to scientists and lay readers alike.<