IG AKT. 3.— B. KOTÔ : 



cleau-cut topography, ^vliicli eloquently speaks for tlie depression of the 

 whole complex to the bottom of 100 fathoms of Kagoshima Bay. 



Eegion°on ^^^*^ same geologic feature can be seen on the 



posiTE Coast Opposite coast near Seto Strait, noAy entirely buried and 

 land-locked by laya-floAVS of the last eruption. The table-mountain of 

 Sakkabira (Ho-zaki) (325 on., PI. IX. Figs. 2 and 3 ; PL X. Figs. 1 and 

 2 ; also Geologic Map), facing the strait, is again the ash-stone or piperno 

 C (Fig. 3) of rather compact texture and light-gray tint, capped with a 

 dark-gi*ay trachybasalt Ai in Fig. 3. In the former, i.e., the ash-stone 

 or liypersthene-trachyaudesite, hornblende or biotite are occasionally 

 found as accessories. The ß and f varieties (p. 13) are exposed on the 

 shore near Obama, 1 hn. south of the strait, o in PI. XII. Fig. 1. Land- 

 ward we find the Mesozoic slate, striking N.E. to S.W. with northwesterly 

 dips, in contact with granite batholith. See Geologic Map. 



Both are intruded b}' the ash-stone C, which was eroded later 

 together with the slate and granite mass, resulting in the formation of 

 flat- topped mountains, 300-700 m. high. They are flanked on the western 

 shore by the 200-meter terrace of lapilli bed. (PL XII. Fig. 1) 



At the fishery village Kaikata, south of the above-mentioned Obama, 

 the ash-stone is overlain discordantly on the eroded edge by a gi'avel 

 bed of slate, ash-stone and ash, which corresponds to the horizon B of 

 Ivagoshima (Fig. 3, p. 14). The writer made here a collection of a number 

 of fossils which were sent to Prof. H. YabÉ for examination. The fossils 

 determined are Gardium iimticwii E,Ave.,. C refusion L., Dodnia troscheli 

 Lischke, Tapes euglypbis Phil., Bulla vernicosa var. ovula ?, Cassis sp. 

 indet. Yabé remarked that all are living species. No. 2 however, 

 being rarely found as a fossil, and that the age of the bed B in question 

 may be of either the late Tertiary or the Diluvial. 



Another locality, made known by M. Uyéda, is 0.2-0.3 hni. inland 

 from the shore t)f Tarumi, Avliich lies to the south of the aforementioned 

 Kaikata. The sandy fossil bed underlies the siu'face k)am deposit, 1-1^ 

 711. thick, and is probably of the same age as the Kaikata bed. The 



