16 HUGHES : WARDHA VALLEY COAL-FIELD. 



kaura, in the neighbourhood of Pisgaon ; and a very restricted area is 

 exposed in the vicinity of Chikli-Takli. 



In the Nizam's dominions the Talchirs occupy the greater portion 

 of the ground from the Pem Ganga to Gaori and Sasti. Here they dip 

 under the coal measures and K^mthis, but appear again further to the 

 south, along the edge of the field, and extend as far as Antargaon, where 

 they are finally lost sight of. 



The Talchirs are easily recognizable throughout ; their mineral features 



and mode of weathering being quite in accord with 



Flexible sandstone. . . ■,-,■,• • ,i . i? -r ■>• 



their aspect and behaviour in other parts ot India. 



Having said this, it will be unnecessary to enter into lithological details, 

 as the memoirs of the Survey already published contain several notices of 

 these rocks. I have,- however, to allude to a very interesting discovery of 

 flexible sandstone made by Mr. Fedden in two localities during his examin- 

 ation of that portion of the field iu the Nizam's dominions lying south 

 of the Pdm Ganga. He first observed it amongst the sandstones east of 

 Charli, then again in the Khairgaon nala west of Nandgaon. He de- 

 scribes the bed as a " highly felspathic, open sandstone, softish, crumbling 

 under the finger, and of a white, grey, or reddish colour." The well-known 

 flexible sandstone of India comes from Kaliana, 5 miles west of Dadri, a 

 town in the Jhind State, 60 miles nearly due west of Dehli. It is only 

 found in patches, in a band of millstone quartzite, belonging to the 

 Arvali series, and its peculiar property is supposed by Professor 

 Haughton to be due to the particles of sandstone which occur in the 

 rock, not being in contact with one another, but lying in a paste of fels- 

 pathic clay, which paste permits a certain amouut of motion between the 

 particles of the mass.* 



In addition to the discovery of flexible sandstone, Mr. Fedden had 



the good fortune to find the missing link of evi- 

 Evidence of ice-action. . 



dence that was required to prove the agency ot 



* Records, Geological Surveyjof India, 1874, Vol. VII, Part I, page 30. 

 ( 16 ) 



