Geological survey of Hokkaido

＜図書＞
Geological survey of Hokkaido


1	Geological survey of Hokkaido : report of progress of the Yesso geological surveys for 1875, and seven coal survey reports / by Benjamin Smith Lyman Tokei [Tokyo] : Kaitakushi , 1877
2	A general report on the geology of Yesso / by Benjamin Smith Lyman Tokei : Kaitakushi , 1877