Ernest F. Fenollosa (1853〜1908), born in Salem Massachusetts, visited the Centennial Exhibition of 1876,and worte his dairy of visitng the Exhibition. His description was detailed on his behaiors for the days. In this report his discription of the diary was traced on the ground plan of the Centennial Exhibition and a floor plan of the buildings, especially the Main Buildinge, and was checked on exhibits and displays by photograph and illustrations. After these works we could know clearer his behavior on the discription and the Centennial Exhibition. Also we could know his visit the Japanese section three times in the two days and might pass the side of the section in the Main Building on the rest of the days.