1834.] between Nimach and Merta, in Malwa. 239 



have been done unless the section had been constructed on a much larger 

 scale. With the scale to which I have limited myself, a bed of several 

 yards in breadth would have been out of proportion large had it been 

 represented by a single colored streak. I have at the same time endea- 

 vouredto preserve, as far as my observations would permit me, the gene- 

 ral proportions which the one rock bears to the other on the grand 

 scale in such alternations. The line of section runs in the first instance 

 over a waved country, and afterwards over one which is nearly level. 

 None of the hill ranges are traversed by this section. 



A, the overlying trap formation of Malwa, at Nimach. B.B. B., the sand- 

 stones, sandstone slates, fyc. described in page 39, of the paper in the Re- 

 searches. These are continued as far as Benauti — surface generally covered 

 with soil from which the strata here and there protrude : country waved 

 and strata become more inclined as we proceed; west-dip SE. or E. On 

 descending from the trap, the descent being gentle, the sandstones are 

 immediately perceived, and, as we proceed west they pass into sand- 

 tone slate and lastly into the shale, &c. Numerous low detached ranges 

 observed running on a northerly and southerly direction ; none of these 

 traverse the line of section, and only in one instance have we occasion 

 to pass over a gentle rising ground connecting two low table crowned 

 ranges. C. C, the hills of this sandstone formation, which are generally 

 of the table shape represented, though sometimes they are conical. The 

 Je'salmir stone abounds with fossil shells, scarcely a slab being free from 

 them ; they are not of the least detriment to the stone, so far as it regards 

 its aptitude for lithographic purposes ; the substance of the shell ap- 

 pearing to have become homogeneous with that of the stone in which 

 they are imbedded. 



Resting on the sandstones and forming the tabular summits of the hills 

 occur, D. D., the quartzose breccia, described page 49. To the west of the 

 Bdri hills occurs E, a yellow-coloured argillaceous limestone, of a compact 

 texture, consisting of about 75 per cent, of earthy carbonates. It contains 

 a small proportion of magnesia, and is coloured by iron, which last exists 

 in pretty considerable proportion. The relative position of this lime- 

 stone to the sandstones could not be correctly ascertained. A little to the 

 north of Benauti occur the limestones described in page 43. These occu- 

 py gentle rising grounds. — I could not discover any organic remains in 

 the yellow limestone, but I have not examined it minutely enough to 

 speak with decision on this point. 



The other limestones are purer and less ferruginous. They contain 

 from 84 to 88 per cent, of earthy carbonates, but both the above varie- 

 ties have a small proportion of carbonate of magnesia associated with 

 the lime. A thick bed of kankar and soil covers the junction of the 



