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water-fowl. The land gains in this dictiict, by the deposition of 

 the muddy contents of the small streams during the monsoon, when 

 the water passing very slowly between the stems of the shrubs, a great 

 portion of the matter held in suspension, is precipitated. This alluvial 

 district occurs only on the southern coast of the Province. In August, 

 1834, the rains were very violent and continuous, and the river which 

 flows past Nurra, on the borders of the Grand Runn, covered with a 

 fine soil a surface of nearly 1000 acres. On the opposite or southern 

 side of Cutch, not far from Mandavee, 300 acres were washed away ; 

 and not far from the same spot, half a small village was removed bodily 

 into the sea. 



Volcanic Rocks. — Besides the southern range of hills already stated, 

 to be entirely composed of trap or volcanic rocks, other extensive di- 

 stricts of the same nature, occuf between the northern and central 

 ranges, and to the south of Luckput ; besides innumerable minor 

 outbursts, some of which forming small conical hills, are arranged 

 around a central area. The author noticed no recent crater, unless 

 the hill, called Denudar, be considered as such, and down the flanks 

 of which he traced a lava stream. The volcanic rocks, consist of 

 several varieties of basalt, often columnar, amygdaloid, green- 

 stone, and trachyte. Capt. Grant described these rocks in great 

 detail, as well as the effects evidently produced by them, enumerating 

 a great variety of instances, in which the disturbance of the strata, can 

 be traced, in the clearest manner, to the protrusion of trap. In some 

 cases the volcanic mounds, are themselves cracked or fissured from top 

 to bottom. 



That the igneous eruptions occurred at many distinct periods, 

 Capt. Grant showed by sections, in which beds of trap, alternate with 

 others of crystalline limestone, calcareous tuff, and a calcareous grit, 

 which sometimes contains angular fragments of basalt ; and by beds of 

 very different characters reposing on each other. 



Among the phenomena connected apparently with volcanic action, 

 the author described a number of mounds, varying in diameter from 

 3 to 20 yards, and covered with small tabular plates of sandstone, the 

 lines of fracture radiating, though irregularly, from a centre. In some 

 instances the summits of these little mounds having been removed, 

 a regular circle of stones appeared, inclosing an area of sandstone, 

 the fracture of the stones decidedly radiating as the stones of an arch. 

 In other instances they resembled .small hillocks, from the upper part 

 of which the outer coating or tabular plates, had generally fallen away, 

 and the whole consisted of a heap of broken masses of rock. 



The author then described what he considers to be a very recent 

 volcanic outburst. It is situated in the nummulitic limestone, near 

 the village of Wag^-ke-pudda, and forms a rather high flat basin, 

 or table land of about two square miles, composed of calcareous marl, 

 and flanked by low irregular hills of ironstone and gravel. The 

 sides are broken by fissures, ravines, and hollows, and the bed of 

 the basin is covered with hillocks of loose volcanic scoriae of various 

 colours. Within the basin are al.so several small craters or circular 

 spaces, surrounded imperfectly by walls of columnar, globular, or 

 friable basalt. These basaltic walls, however, lie conceives are of an- 



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