stone. 



NERBUDDA DISTRICT. 143 



found preserved in the most extraordinary perfection. It would be 

 useless to give a list of localities under such cir- 



Rippling. g 



cumstances, but Sirbo hill (an outlying hill on the 

 Rewah plateau) may be mentioned as a place where throughout a great 

 thickness of sandstone beds, rippling is beautifully preserved : all kinds 

 of variety of form may here be seen ; short deep waves, long shallow 

 ones, the mammillated surface resulting from the meeting of two cur- 

 rents, or from the partial effacing of one set of little waves by the subse- 

 quent formation over them of a new set with a slightly different direc- 

 tion. The " Great Deccan" Road between Rewah and Myher runs close 

 to the south of Sirbo hill. 



While speaking of the varieties of the Vindhyan Sandstone it must be 



Coarse grained Sand- noted tbat even the fine grained character, al- 

 though well nigh universal, has its exceptions. 

 Some few thick bedded coarse sandstones occur ; such beds may be seen 

 just above Kuttra Gh&t, and again near Myher ; far to the east near 

 the city of Bhopal, and in the bank of the Nerbudda at a village called 

 Menda, near Hindia. Pebbly and conglomeratic layers are exposed on 

 the east side of Bhopal lake, as well as the coarse sandstone ; and pebble 

 bands also occur at the locality mentioned near Myher. 



The section exposed at Kuttra Ghat as well as the parallel one at Bilohi 

 Lower beds of Kuttra S Mt > shows that the sandstone of the Table land 

 Ghat " is there supported by a considerable thickness 



(not less than 400 feet) of beds very unlike the sandstones themselves 

 being shales and micaceous flags. Captain Franklin speaks of these 

 beds as " primary schists," an error corrected shortly after by Jacque- 

 mont (see introductory chapter) and of the sandstone above as " New 

 Red." Far from there being any unconformity between the rocks of the 

 bottom, and those of the top of the Gla.it, the character of their junction 

 is transitional, the shales pass up into earthy flags, and frequent alterna- 

 tions of the earthy and sandy members of the series occur. 



