488 



Also at Liana in the nortliern part of the province of Endeh Pannekoek 

 found a lime stone rich in Foraminifera, in which moreover fragments 

 of quartz, plagioclase and biotite were detected \\ From this it appears 

 that the limestone is younger than the dacite. In the valley of 

 Ndona, eastward from Ambugaga, I found a boulder of Globigerina- 

 iimestone. For the rest effusive rocks with their tufas and loose 

 eruptive materials are prevalent in this region. The southern part 

 of the peninsula of Endeh is formed by Mount Ija, usually called 

 Gunung Api (635 m.). The material from which it was formed is 

 angite-andesite. For a long time it has been in a solfataric activity. 



To the north of this mountain rises Pui or Gunung Medja only 

 394 m. high, which has retained a regular craterform '). In a 

 northern direction Mount Kengo (514 m.) and Mount Wongo (723 m.) 

 which Elbert regards as the two cupolas of one encircling mountain, 

 are connected with the peninsula of Endeh ^). Most likelj" the 

 eruption of a mountain, situated behind Brai, in 1671, wdiich P. J. 

 Veth mentions^) relates to Kengo, and not as I supposed formerly 

 to Pui. 



To the West of the Ndona valley rise Geli Bara (1731 m.) and 

 Geli Mutu (1494 m.), the latter of which is in a situation of solfataric 

 activity ^). The pyroxene- and labrador-andesites originating from this 

 territory were described by G. Rack"). I found in 1888 in the 

 valley of Kdona numerous boulders of dacite, labrador-andesite, 

 augite-andesite and on the declivity of the mountain andesite. To 

 the east of volcano Ndona Elbert still mentions Nduri, which has 

 a solfatara'). The island of Nusa Endeh situated in the Endeh Bay 

 is likewise of a volcanic origin. 



In the eastern part of the island of Flores the lim.estone formations 

 have become very scarce. The little information we have about it 

 is limited to the hillrange in the W.N.W. of Sikka situated in the 

 province of Liu on which, according to H. ten Kate, the villages 

 of Kiara (±275 m.) and Riipuang (±350 m.) are situated.') The 

 rock collected by him is a Globigerina limestone. In the farthest 



1) Overzicht van de geogr. eu geolog. gegevens 1. c, p. 219. 

 ~) A. Wtchmann ]. c, p. 222. 



3) 1. c, p. 202. 



4) Het eiland Flores. Tijdschr. voor Nederl.-Indië. 1855. II. p. 157. 



^) J. J. Pannekoek van Rheden. Eenige geolog. gegevens l.c, p. 157. — 

 J. Elbert. Die Sunda-Expedilion. II. 1912, p 202. 



6) I.e., p. 78—82. 



7) I.e., p. 202. 



8) Verslag eener reis in de Timorgroep en Polynesië. Tijdschr. K. Nederl. Aardr. 

 Gen. (2) U. 1894, p. 221. 



