AMS 1. North Decimal Degree 25.002778. South Decimal Degree 24.987500. East Decimal Degree 121.316667. West Decimal Degree 121.295833. Alternate title: Toen. In upper left margin: Formosa city plans 1:6,000. Polyconic projection. Relief shown by 10 meter countour intervals and 5 meter auxiliary contour intervals. Compiled in 1944 from aerial photography dated April 1943 by photo-planimetric method and by reference to Formosa 1:25,000, A.M.S. Sheet 2321-I NW, 1944; Formosa 1:50,000, Japanese Imperial Survey, Taihoku-West, 1929 and Toen, 1930. Additional information from intelligence data. Place names are transcribed according to the modified Hepburn (Romaji) System. With a glossary. Name has been changed to T'ao-Yiian [Taoyiian].