1856.] 



Proceedings of the Asiatic Society. 



253 



been derived solely from the facts presented to him in other places. 



The detailed examination of the greater part of the Nerbudda 

 district was due to the exertions of Mr. J. G. Medlicott. 



The following would therefore give a summary view of the groups 

 here proposed in descending order, neglecting for the present all 

 the more recent divisions. 



Groups. 

 Mahadewa,. . 



Damoodah,. 



Bundair, 



Kymore, 



Sub-Kymore, .... 

 (name proposed 

 by H. B. Medli- 

 cott, Esq.),. . . . 



Mineral character. 



Sandstones, with a few 

 shalybeds, for the most 

 part pebbly, often 

 striped with ferrugi- 

 nous bands. 



Shales, sandstones, coal, 

 for the most part thin- 

 ly bedded and regular, 

 often greatly cut up by 

 trap dykes. In Cut- 

 tack however there are 

 no trap rocks. 



Sandstones, and shales. 



Limestones, shales and 

 sandstones. 



Sandstones and lime- 

 stones and shales. 



Crystalline limestone 

 pseudo-gneiss, mica- 

 ceous schists, and 

 quartzites, red and 

 green, and white, .... 



Age, Sfc. 



Geological age unknown, 

 a few vegetable fossil 

 stems, &c. 



Age not thoroughly decid- 

 ed, probably Jurassic, 

 fossils chiefly vegetable 

 — name taken from the 

 locality where series is 

 most fully developed. 



Age unknown, probably 

 very ancient, seen all 

 along Vindhya range, 

 into Behar and to the 

 Ganges at Monghyr. 

 Probably also in the 

 Khasia Hills. Possi- 

 bly only two subdivi- 

 sions. 



Highly probable, though 

 not yet thoroughly prov- 

 ed, that these are only 

 the continuation down- 

 wards of the Vindhya 

 groups subsequently al- 

 tered. 



Granite, gneiss, hornblende-rock, greenstone, &c. 



Another district of considerable interest had also been examined 

 during the past season, by Messrs. Blandford and Theobald, and 

 the results arrived at under their careful scrutiny had been strongly 

 confirmatory of the results given above. The Cuttack, or Talchere 

 coalfield gave the following section, descending : — 



Alluvium, laterite, fyc. 

 1. — Upper grit series, — unfossiliferous — quartzose grits and coarse 

 sandstones, with occasional red shales ; pebbly throughout, and near 

 base conglomeritic— above 2000 feet. 



2 L 



