LOWER TRANSITION ROCKS. 99 



section. The haematite No. 12 and the trapflow No. 13 correspond 

 with Nos. 11 and 12 respectively of the Narihalla section. The 

 Raman Drug section No. 18, haematite with schists, I consider con^ 

 tinuous with the Devadara beds Nos. 16 and 17 of the Narihalla 

 section, and the trapflow No. 19 of the Raman Drug series corre- 

 sponds with the Hoshalli trapflow (No. 18), the highest member of the 

 Sandur series as exposed in the Narihalla section. 



If the Raman Drug ridge be followed north-westward, the haema- 

 tite beds which form the crest show but little 

 Raman Drug ridge. * 



change for the first 5 miles or more, but then 



they begin to become less ferruginous, and with that lose their 

 distinctiveness and cannot be distinctly traced among the hard 

 green chloritic schists which here predominate. Thus to the 

 north-west of Mederhalli, the haematite bed No. 9 of the Raman 

 Drug section, which forms the crest of the highest ridge, has lost its 

 character as a typical haematite quartzite and passed into a " very 

 dirty quartzo-ferruginous rock ". Some distance further north still it 

 ceases to crest the high ridge and dwindles as it loses in elevation 

 and is no longer distinctly traceable, finally dying out to the north- 

 west of Kalhalli (Cullhally). 



A noteworthy section of the Raman Drug ridge is to be seen at a 



point south-south-west of Mederhalli (Mader- 

 Great cliff section. 



hully). Here the haematite bands forming the 



crest are exposed in a fine cliff cutting the beds at a right angle 



to the strike. The thickness seen must amount to several hundred 



feet. Half a mile further north the beds seen in the section, which are 



the Ramandrug Drug (Trigonometrical station) and "red cliff " beds 



of the Ramandrug sections, sink and trend away down into the valley, 



and two of the more westerly beds take their place in forming the 



crest of the ridge. These appear to continue the crest to the north 



of the ridge. 



The height of the Trigonometrical station, which is situated on 



the eastern side of the ridge plateau, and which rises a few yards 



above the general level of the place, is 3,256 feet above sea level. 



G 2 ( 99 ) 



