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crater unxy be nieiitioiied ;is lluul<'n<i<iii.-criili'i\ llie iiorlh-easlerii one 

 as Senipot'-ci'dtcr. 



Appareiilly this \-ie\v does not (liffer iiiiu-!i IVoiii that ot" llie 

 Sakasins as il is e.\[)resse<l, if no! in the text, al all events on their 

 map of the Miiiaha.ssa (I.e. Taf. XI), where around (he So[)oetan-coiie, 

 to the soiitii-, west-, and Jiorthwest-side a wide encircling- wall is 

 indicated. They founded themselves for it (I.e. p. 60 and HI) on the 

 promontory that interrupts the cone-prolile on the south-west-side 

 and has been recognized by liiNiNE ^) as a fragmentary somma. This 

 induces them to admit of an old Sopoelan-crater concentric with the 

 present one, and so l)elonging to this comparatively young volcano, 

 consèc[uently not to the old fragments of the ci-ater-edge, which have 

 doubtless been presei'ved iu the i-anges to the north of this cone. 

 Indeed towards this side their older So[)oelan-e(lge remains open, and 

 even they guess, on account of that somma, that of the three volcanoes, 

 Sopoetan, Manimporok, and Kelelondei, the former might t)e the 

 oldest. 



On my tirst ascent of Sopoetan in May 1899 from Tombatoe, I 

 intended, after having reached the crater from the south-east, also to 

 visit the mentioned somma, known as Sopoetan Fdtepam/an. A dread- 

 fid rain-shower however made the descent to degenei'ate into a wild 

 flight of my men to the bivouac, and compelled me to gi\e up this 

 plan; later on I have neither found time for it. So I caunol adduce 

 a proof for my suppositi(jn that we have not to do here wUh a 

 prior stage in the history of the origin of Sopoetan proper, i)ul really 

 \vith a south-western part of the old Rindengan-edge. It is certainly 

 remarkable tlnd further round that mountain, i. e. over the greater 

 |)art of the circumference, this [)resunied Sopoetan-somnni cannot be 

 pursued, not even by any, irregularity in the slopes, and remained 

 intact exactly there where it conqiletes in a natui-al way the part 

 of the Rindengan-wall situated diametrically opposite, with which it 

 also agrees pretty well in the estinuited sea-level. In my opiinon 

 consequently in the southern part of the Rindengan-crater tlie Sopoetan- 

 volcano has originated, the eru[)tions of \vhich have erected this 

 volcano-cone which is to be j-egarded as not com|)osite, in an uu- 

 interrni)ted series of eruptions. 



Within the Sempoe-ci'atei* also there is a mountain, — tlieScmpoe 

 of the map, howexer \vilhout a crater. ( )n ilie |)hotograni in 



Rinnf;s afore-mentioned nolicc (l)eil;tge-blatl \'ll lop-ligure), taken 



ij Prof. Dr. V. Iiin.m; : Skiz/.rii ziii' deologU' der Minaluissa in N()rcl-(.lek'l.)c.^. 

 Zeitschrift d. Dculijclicn (Jcol. Cicricllscljati I'l. Lll IIJOU, Öcpt. p. 8 and Beilage- 

 blatt U and 111. 



