LAMETA. 89 



All the fossils are apparently derived from the red clays, but the 

 shells are hard silicious casts, such as it is improbable should be met 

 with in clay, and it is possible that they have been washed down into 

 the low-lying" ground from an inter-trappean bed ; being moreover the 

 species familiarly known in these. This bed, however, I could not find, 

 so that the suggestion as to their being foreign to the clay is open to 

 question. 



The Lametas crop out from under the trap on all sides of Pisdura 

 hill, and fragments of arragonite occur here and there. The continua- 

 tion at the north-west corner is obscured by grass and alluvium. 



The characteristic limestone is seen near Kotebara and Khemji over- 

 lying beds similar to those at Pisdura. It is strongly developed, and 

 extends to the village of Wardha. 



The largest area mapped as Lametas, is that extending from Segaon 

 to Panchgaon. Sections are very broken. Red soil is abundant, and it 

 is evidently derived from red clays. These have been assigned to the 

 Lametas. As a rule the clays are too disintegrated to afford any clue to 

 their relations; but at Agar-Sagar (Agra-Sagar) they are not so broken, 

 and they are found associated with distinctive Lameta sandstones. 



The usual cherty limestone occurs at Agar-Sagar, and it is also seen 

 at Dhamni and Pauna. At the two latter places it occurs in force,, and 

 forms a well-defined ridge of a few feet in height. 



I had the advantage, whilst traversing the area allotted to the 

 Lametas, of being accompanied by my colleague Mr. Fedden, and in all 

 instances where any doubt arose regarding the position to be assigned to 

 the various outcrops of red clays, sandstones, and limestones, we consulted 

 together. The advantage of being able to do so was felt on several occa- 

 sions, and especially so at Dhamni, where Mr. 



Dhamni. _ . . x . c 



Fedden discovered some fish remains. It was ot 

 high importance to determine the relation of the shales in which they 



( 89 ) 



