To the same effect may be interpreted the action of the Association of American Law Schools, which in 1902 elected him its president. In 1869 he was appointed to the faculty of the Yale Law School, then in a moribund condition. His active participation in the affairs of that school was to continue for just fifty years, for it was not until 1919 that he retired as professor emeritus. The revival of the law school was largely his work. He increased the size of the faculty, instituted new courses, developed graduate work, and for a long time carried much of the financial responsibility for the school's existence ("Yale Law Journal", March 1927, p. 680). It was characteristic of him that when shortly before his retirement the method of teaching was changed to the so-called ""case system,"" to which Judge Baldwin, like most of his contemporaries, objected, he never for an instant changed his attitude of loyalty to the school, which some years later was to be most generously remembered in his will.