426 



Beobachtungen zusammenzufassen; er legte dieselben auf 

 englisch in vorläufigen Mitteilungen in einer Zeitschrift 1 ) nieder, 

 aber er hat sich so kurz gefaßt, daß wir nur wenig Neues 

 darin finden können. Betreffs der Kreideformation enthält die 

 Arbeit folgendes: 



„The Mesozoic rocks, whose total area is next to that of 

 the Tertiaries, show their principal development in a broad 

 zone on the west side of the Median Depression. The oldest 

 known and the best explored locality of the Cretaceous fossils 

 is that of Cape de la Jonquiere near Alexandrofsk. The very 

 rieh locality on the lower course of the Naibuchi river, called 

 „Petrefaktenschlucht" by Lopatin, who lost all his collections 

 from there on his boat turuing upside down, was studied 

 particularly for the coal-seams found there in the Tertiary. 

 There are several other places in Sakhalin, where more or 

 fewer speeimens of Cretaceous fossils have been already found: 

 as for instance at the Gilyak hamlet of Pileve and at 

 "Wencheshi, both on the west coast, on the rivers Khoi, 

 Shiruturu, and Makunkotan, besides at Ware and Otasan on 

 the coast of Patiente Bay, Takinosawa on the Pass from 

 Yladimirotka to Mauka across the Western Range, and Motsnai, 

 Tomarionnai, etc., on the west coast of Aniwa Bay. Besides 

 Schmidt states the occurrence at Manue on the coast of Patience 

 Bay, also at Cape Patience, at Cape Bellingshausen, and near 

 Rymnik. However, I only found finely broken shells of Inoceramus 

 in colossal amount, enclosed in a black shale, at about 8 km 

 to the north of Narunii on the east coast. The Mesozoic 

 region near Toni, observed by Katayama, affords no fossil." 



„The cretaceous rocks, which very often show a meridional 

 strike, and carry tufaeeous admixture as the Tertiary Sedi- 

 ments do, are sanclstones (in part glaueonitie, as on the river 

 Naibuchi and on the west of Takinosawa), besiäes shales (gray 

 or dark in colour, and sometimes hard as on the Khandasa 

 river, and usually carrying niarly nodules, which may grow 

 together in layers), and conglomerates. The Cretaceous conglo- 

 merates must not be coufounded with those on the boundary 

 of the coal-bearing Tertiary and the Cretaceous as observed at 

 Pileve and on the Khandasa river. A peculiar light gray 

 niarly, on the lower course of the Naibuchi and on the 

 Khandasa too, is without any fossil. Well preserved fossils 



l ) K. Jimbo: Preliminary Notes on the Geology of Japanese 

 Sakhalin. Transactions Sapporo Nat. Hist. Soc, Vol. IL, pts. 1—2, 

 1908. 



