170 W. BLANFORDj WESTERN INDIA. [PaRT II. 



The intervening hill is of a peculiar light grey prophyritie trap, re- 

 sembling trachyte, and in great measure composed of finely disseminated 

 zeolite, probably a form of natrolite. Scattered throughout the rock are 

 small crystals of black hornblend, six sided prisms with trihedral summits, 

 varying in length, some of them acicular, others short and blunt. This 

 trap also contains small angular fragments of other rocks, evidently 

 altered. Close by is a mass of basalt, containing fragments of quartz, 

 half melted into and permeated by the trap. All around is ash, resting 

 upon the sandstone, and frequently itself sandy and mixed with sediment. 

 The porphyry and the basalt with quartz fragments are, in all 

 probability, intrusive ; the sandstones are much disturbed, and the spot 

 may very possibly have been the site of a volcanic outburst. The 

 very large proportion of ash beds in this neighbourhood, and the frequent 



occurrence of masses of intrusive trap, seem clearly 

 Evidence of a volcanic J- '' 



centre. to indicate a centre of igneous action, perhaps 



part of the great volcanic focus of the Rajpeepla hills. 



All these hills of volcanic ash are highly fertile, and they are fre- 

 quently cultivated to their summits. 



Returning from the hills northward into the plain country of Kawat, 



and proeeedinsr westwards down the valley of the 

 Character of country r o 



near Kawat. Kurro and Hiran streams, all is trap for a long 



distance, no patches of sandstone occurring. Conglomeritic ashy beds, 



though far less common than in the hills to the south, are occasionally 



met with. A section of one such band is seen in the Kurro near Sin- 



ffulda. It contains rounded masses of various kinds 

 Conglomeritic bed near ° 



Singulda. of trap, including most of the ordinary varieties, 



also of granite, metamorphic quartzite, and slate. The fragments of 

 trap are just as much rounded as those of other rocks. The abundance 

 of the fragments of metamorphic rocks is noteworthy, as it proves that 

 the whole country when this bed was deposited was not covered by 

 ( 332 ) 



