344 



Geology of the Deccan. 



[Oct. 



XII.— Selections. 



l.— On a portion of Dukhun, East Indies.— By Lieutenant-Colonel 

 W. H. Sykes, F. R. S. F. G. S. F. L. S. 



My 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, al- 

 though 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 observations on the trap and other formations of 

 India ; the amazing extent of the former not appearing to have been 

 appreciated hitherto in European geological works. 



Boundaries.— My tractf is bounded on the west by the range of 

 mountains usually denominated 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 Rahooreh to the city of Ahmednuggur, and 

 subsequently on the north-east by the Seena river until its 

 junction with the Beema river below Mundroop; on the south- 

 east by a line 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. 

 Agreeably to observations made by myself and the officers of the re- 

 venue survey in Dukhun, the tract lies between the parallels of north 

 latitude 16° 45- and 19° 27', and east longitude 73° 30' and 75° 53', and, 

 roughly calculated, may be said to comprise an area of about 26,000 

 square miles. 



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

 he " a" the a in " all.'* 

 t Bee Map, Plate 7, 



