NERBUDDA DISTRICT. 103 



varieties of trap rocks, considering one to be contemporaneous with the 

 metamorphic rocks, the other to be overlying, and of the epoch of the 

 calcareous conglomerate and tufaceous deposits, evidently of an origin 

 more recent than the sandstones. A map and sections exhibiting the 

 writer's views of the Geological structure of the district were also given. 

 In the following year Mr. Hardie brought before the Asiatic Society 



of Bengal (a) a description of some of the rocks 

 1829. Hardie. . 



of the same district, confining his attention, how- 

 ever, to a limited area. His remarks also, are more directed to the 

 mineralogical or lithological structure of the rocks, than to their geolo- 

 gical relations. 



Jacquemont visited this district a few years later and corrected, in 

 several respects,- the statements of Captain Frank- 



1833. Jacquemont. 



lin. He points out the absence of all " primitive 

 rocks" at the base of the escarpment at Tara-ghat, where Franklin had 

 represented them to occur. He gives detailed descriptions of the rocks 

 of the Rewah Table land, especially of the limestone, in which he was 

 disappointed at not being able to detect any traces of those organic 

 remains mentioned by his predecessor. He describes this limestone as 

 resting on the sandstone of Kuttra-ghat (the second range) and under- 

 lying that of the Bundair hills (the third range), at the same time saying, 

 that he did not succeed in finding any section clearly "showing that this 

 latter superposition obtains. 



The main value of the labors of this naturalist on the geology of this 

 part of Central India seems to be derived from the care with which he 

 observed and the minuteness with which he described, as a mineralogist. 



Captain Franklin states that he found " black bituminous shale in all 

 the glens," on the north side of the Bundelcund plateau ; Jacquemont 

 mentions the presence of " Anthracite" near Rampur, and both seem to 



(a) Sketch of the geology of Central India, exclusive of Malwa, by James Hardie, Esq., 

 Asiat. Eesear. Vol. XIX, pt. II. p. 27. 



