Sec. 6.] detailed descriptions. 123 



No fossils' were observed in the earth throvvn out from the wells. 

 Old workings are scattered over the country and serve approximately to 

 indicate the extent of the salt-bearing stratum. 



Returning now to the extreme eastern edge of the map, a small 



portion of the Wurda valley will be found included 

 Wurda valley. 



in the present section. Much alluvium occurs 



here also in the immediate neighbourhood of the river, and presents 



precisely the same characters as in the valley of the Poorna, except that 



the salt-bearing beds are not known to exist. But this alluvium is not 



continuous over any very large area ; trap is seen every few miles in the 



river bed, and it has not been necessary to distinguish the tract occupied 



by alluvial deposits on the map. 



In the gravels below the clay a few bones and teeth were found, as 



in the Poorna valley, but in both cases they were 

 Fossil bones and teeth. 



exceedingly rare. At Buttoda, on a small stream 



called the Changur, a tributary of the Wurda, two interesting teeth were 

 found. One was the first premolar of the right lower jaw of a horse, the 

 other the canine tooth of some very large carnivore. It exceeds a tiger's 

 tooth in size, and almost equals Machairodus. Unfortunately the termi- 

 nation and the inner edge being imperfect, it is impossible to say whether 

 it be ursine or feline. 



The watershed between the Wurda and Poorna is mostly low (except 

 Watershed of Poorna south-east of Oomrawuttee) , and consists almost 

 *° ^^ ^' solely of trap, nearly horizontal. 



Two small tracts of laterite, however, are met with, one just south 



of Rithpoor, the other about four miles north of 

 Laterite near Eithpoor. • ^ ^ 



Oomrawuttee. The latter is the largest and best 



exposed, some good sections of it occurring in the river bank. Above, 



it is gravelly in texture, consisting of the usual small ferruginous grains 



in a red matrix ; the grains when broken showing concentric structure. 



Beneath, it is more compact, but soft. In one place it was seen to rest 



( 285 ) 



