58 ART. 2— S. YOSHIWARA : 



7tli., The Kankyaku série«, with two seams, running through 

 Kentan (near Taihoku), Hasshirin (PachinH), Kankyaku and 

 l>asokukökei. 



<Sth., The Intanshinai series witli two seams, running through 

 Kirigan, Sankakuhö, fntanshi (soutli of Kinpöri) and 

 llattoshi. 



Mr. \ amashita has found tw<j anticlinal and three synclinal 

 foldings in the eastern part, and one anticlinal and two synclinals in 

 the western part. All their axes run E-W, but most of them can not 

 Ik; traced from one end to the other of the district observed; the sole 

 exception being a synclinal which runs through the south of Chösökei, 

 the north of Heirinbi and the south of Shintengai. The Tertiary 

 rocks, on the north of this ;ixis, which show the above mentioned 

 small folds, are mostltj inclined to the south, while those in the southern 

 half are almost always inclined to the north. Besides there are, in the 

 north, all of the seams; but in the south, there was found only the 

 uppermost seam near the synclinal axis. Though the greater part of 

 the region in the south is now difficult to traverse on account of the 

 wildness of the aborigines, yet it is probable that there are very scanty 

 coal-deposits in that region. In the north, many limestone layers and 

 several fossils are found. In the south, it is not yet reported that 

 limestone exists, and fossils are moreover very rare. Rocks found in 

 th(; north are mostly shale or fine-grained brownish sandstone, both 

 being shallow-sea deposits. In the south, the uppermost strata are 

 brownish shale, in which nodules are more abundant towards the lower 

 part, which is irregularly split up into angular fragments. This part, 

 which is slate-like, finally passes into clay slate which is in all 

 exposures conformable with the shale. The annexed figure (Fig. 10) 

 shows a profile, found in the northern half of the Tertiary region. 



