1847.] VICARY ON THE GEOLOGICAL STRUCTURE OF SINDE. 341 



irregular coating of sand resting on the same yellow clay so often alluded 

 to. Kotree is on the right bank of the Indus opposite to Hyderabad. 



Having taken in supplies, I proceeded hence to Ukka-Nag, a 

 spring of sweet water in the hills, about seventeen miles N.N.W. from 

 Kotree : thirteen miles of this was over the plain through which the 

 Indus now finds its way to the sea. I then came upon hills of 

 small elevation trending N.N.E. and S.S.W. The range here is 

 composed of isolated hills not exceeding 400 feet above the plain of 

 the Indus, their apices level with nearly horizontal strata, their 

 sides abrupt and precipitous, the uppermost beds being in all re- 

 spects similar to the non-nummulitic rock (No. 6). The valleys or 

 intervening spaces between these hills have been much disturbed. A 

 variegated clay abounding with gypsum is of common occurrence, 

 but contains no fossils. A brown rust-coloured rock is abundantly 

 distributed on the surface near this, in the form of large rounded 

 boulders, and the Kotree blacksmiths occasionally visiting this place 

 select the most promising specimens, and transport them to Kotree 

 for the manufacture of iron. 



Hence, in a northerly direction, I proceeded to Buchera in the 

 plain of the Indus for about fifteen miles, and the country passed 

 through held the same character to within half a mile of the base 

 of the hills : here I found the conglomerate resting on a thin bed of 

 arenaceous rock which I could not identify, and which reposed upon 

 No. 7. The conglomerate eventually disappeared beneath the yellow 

 clay of the plain. 



Water was not to be had within the hills at this season of the 

 year ; I was therefore obliged to continue my journey as far as 

 Luckee through the plain of the Indus. The Kotree range of hills 

 terminates nearly west of Majinda, and is succeeded by another 

 range trending nearly north as far as Sehwan ; the water of this range, 

 except at Rennie-kote, is salt and unfit for use ; the hills attain con- 

 siderable elevation (from 600 to 800 feet) above the Indus, towards 

 which their aspect is very precipitous ; they are the abode of the 

 true Ibex. Between this range and the Indus there are numerous 

 low hillocks of aluminiferous clay, from which the Sindees manufac- 

 ture alum. I was unable to ascertain the exact relation of these clays 

 with respect to the beds entering into the formation of the more ele- 

 vated range. The proper time to explore this place would be after 

 a fall of rain, when water would be obtainable from ponds. — Moved 

 on to Luckee, which is about sixteen miles to the southward of 

 Sehwan. The range here approaches the river, and is of easy access. 

 It is not so high here as further to the southward, and becomes gra- 

 dually lower in a northerly direction towards Sehwan, where it termi- 

 nates. The following section will give some idea of the range of 

 mountain at the Luckee Hot Springs, 



Fig. 2. 



w. 



ladus. 



No. 6. 



Bed of stream. 



No. 7. 



