36 FOOTE : SOUTH MAHRATTA COUNTRY. 



He notices^ also, certain small cylindrical cavities (tubes) in the lime- 

 Btones, the work of pholades according to Drs. Carter and Buist. 



The occurrence of pyrites in the limestones north of Mudanur 

 (Moodanoor) in sufScient quantity to be used for conversion into sul- 

 phur for the manufacture of gunpowder is likewise named. 



Some of the Deccan trap-flows^ in which unweathered, or but slightly 

 weathered, nuclei of basalt appear in a matrix of soft wacke, he re- 

 garded as flows formed out of the condition of " volcanic mud " which 

 had gathered up fragments of older flows in its wave-like course. He 

 was acquainted with a large bed of supra-trappean chert, apparently 

 that occurring at Shellugi near Talikot. 



He describes some warm springs occurring in the Shorapur Taluq ; 

 one at Wajal (Wujul), and two at Mudanur. 



The interesting brine springs at Bychubal, said to be sunk to a 

 depth of 120 feet, are also described, and the remarkable brackishness of 

 the water of the Don River is likewise referred to. 



Colonel Taylor's admirable description of the fall of Chaya Boga- 

 vatti during a fresh has been noticed in the introductory chapter. 



{ 36 ) 



