VII. — On a portion of Diikhun, East Indies. 

 By Lieutenant-Colonel W. H. SYKES, P.R.S. P.G.S. P.L.S. 



[Read January 23, 1833.] 



M.Y personal observation of Dukhun (Deccan) and Konkun (Concan) * 

 is not confined to the boundaries laid down in the following geological 

 memoir; but as the rock and mineral specimens remaining at present in my 

 possession are from Dukhun only, I have not thought it proper to extend 

 my details beyond the limits I here prescribe to myself, although I might 

 venture to do so from notes taken at different periods, without exposing my 

 accuracy to question. I will, however, in closing this paper, offer a few ob- 

 servations on the trap and other formations of India; the amazing extent of 

 the former not appearing to have been appreciated hitherto in European geo- 

 logical works. 



Boundaries. 



My tract f is bounded on the west by the range of mountains usually deno- 

 minated by Europeans the '"Ghats", from a misinterpretation of the term 

 ghat, which simply means a pass, the proper name of this range being the 

 "Syhadree"; on the north by the Mool river, as far as Rahooreh ; on the 

 east by a direct line from Rahooreli to the city of Ahmednuggur, and sub- 

 sequently on the north-east by the Seena river until its junction with the 

 Beema river below Mun droop ; on the south-east hyaline from Mundroop 

 to the celebrated city of Beejapoor; on the south by a line from Beejapoor 

 to the town of Meeruj ; and from this place the boundary in the south-west 

 is the Kristna and Quina rivers, to the hill fort of Wassota, situated in the 

 Ghats. The western boundary line extends, as the crow flies, about 144 

 miles; the northern 72 miles ; eastern and north-eastern 159 miles; south- 

 eastern 41 miles; southern 80 miles; and south-western 88 miles. Agree- 

 ably to observations made by myself and the officers of the revenue survey in 



* With respect to the pronunciation of native words, the "u" is the u in "hut" and the "a" 

 the a in "all." 



t See Map, Plate XXVI. 



