Imperial Geological Survey of Japan topographical map : Division I-[V].Chishitsu ChoĢsajo (Japan)1912-15.Black-and-white maps with water features shown in blue.Each division mapped in 4 to 6 sheets.Imperfect: Division I wanting.Relief shown by contours and spot heights.Title, place names and legend in English; sheet information and imprint also in Japanese.cartographic