books.google.co.jp - Most of Barnard's career was spent in executive practice. A Mount Hermon and Harvard education, cut off short of the bachelor's degree, was followed by nearly forty years in the American Telephone & Telegraph Company. His career began in the Statistical Department, took him to technical expertness in...http://books.google.co.jp/books/about/The_Functions_of_the_Executive.html?hl=ja&id=W9BsFQf834wC&q=mental+processes&utm_source=gb-gplus-shareThe Functions of the Executive.