1 98 Br. Voysey's Private Journal ■ [No. 3, 



our path, which continued to appear from time to time until we were 

 past Peddurgall. I afterwards saw large blocks of granite containing 

 epidote ; I could not however trace any connexion between the two 

 rocks. The limestone appeared at times in vertical strata and at others 

 nearly horizontal ; it is not at all crystalline, and contains a considera- 

 ble quantity of argil. 



Tuesday, 8th December, 1818. — At Dachapilly, on our road to the 

 Kistna, the horizontal limestone, or at least nearly so, made its appear- 

 ance in great abundance ; all the houses and walls of the gardens were 

 built of it. In a pagoda I saw large blocks at least five feet by three. 

 At this place it was to be seen of all colours from a very white semi- 

 crystalline to a black colour. On our road after quitting Dachapilly, it 

 alternated with the argillaceous calc tuff ; about four miles from Dacha- 

 pilly it was seen in great quantity of a dark black colour (compact 

 Lucullite of Jameson), and on our approach to Pondegul it was covered 

 by large and small rounded masses of quartz rock in considerable 

 quantity. When on the bank of the Kistna, it was horizontal and of all 

 colours, zoned, and with a substance intervening between the strata 

 sometimes white and fibrous like tremolite, at others like red and black 

 ironstone ; sometimes containing small nodules of red ironstone, and in 

 one instance, from a specimen I found in the bed of the river, green 

 quartz. 



Two furlongs above, and one below our present station, are found in 

 the bed of the Kistna, large and small rounded pebbles of granular 

 quartz rock, jasper with quartz and micaceous iron ore interspersed in it. 

 The strata on the bank for at least fifty feet, have sunk in a very abrupt 

 manner, I should suppose, from the gradual undermining of the river 

 which is rapid and very full in the rainy season : it brings with it vast 

 quantities of mud, which it deposits at the sides on the limestone, and 

 thus marks its height. The river is about the breadth of the Thames 

 at Battersea, and becomes suddenly very deep. The extent of this 

 limestone formation, which is the compact limestone of Jameson, and 

 although a secondary formation would form a very handsome polished 

 marble, is very considerable ; I first saw it at Nacricull, distant about 

 thirty miles. It appears unfavourable to vegetation as in the jungle we 

 saw nothing but two species of Euphorbia, and some hardy leguminous 

 plants ; I have as yet searched in vain for petrifactions. 



