<Li> 4 . Herbert Eustis Winlock: 1932 to 1939 </Li> <Li> 3 . Edward Robinson: 1910 to 1931 </Li> <Li> 2 . Caspar Purdon Clarke: 1904 to 1910 </Li> <Li> 1 . Luigi Palma di Cesnola: 1879 to 1904 </Li>

Who is the current director of the metropolitan museum of art