Chap. IV. § 1.] the damuda series. 45 



order to have any value. But in this instance, as in every other, the non~ 

 discovery of either of the species of Schizoneicra-like plant, one of which 

 is so abundant in the Upper series of the Raniganj field, is strong evi- 

 dence in favor of the opinion that no representatives of the Upper series 

 have yet been examined beyond the area now under consideration.* 

 A field of Damuda rocks exists near Jariagarh, about 15 or 20 miles 



West of the Raniganj field. It has not been 



Jariagarh. 



visited by the present survey ; but it is stated 

 that it contains ironstones with carbonaceous shales. It is difficult to 

 say if these represent, in any way, the great band of the Raniganj field, 

 as numerous similar deposits of small extent and thickness occur, both 

 in the higher and lower series of the Damuda group. The circumstance 

 that Mr. David Smithf considered the deposit at Jaria as unimportant, 

 renders it probable that it is merely a thin local bed. We have there- 

 fore no evidence as to the presence of the Raniganj series at Jaria. 

 Mr. Williams distinctly states that both the ironstone shales and the 



upper series occur in the Ramghur coal fields, 

 Ramghur. 



South of Hazaribagh4 The only information con- 

 cerning these fields, however, is contained in this Report, based' on the 

 imperfect notes found after Mr. Williams's death, which took place 

 while he was engaged in the examination of those districts. The remarks 

 on the subject are extremely confused, but if they imply, as they appear 

 to do, that the few bands of ironstone detailed in the section, at pages 

 49 to 52, represent the great band of ironstones of the Raniganj field, the 

 evidence offered appears scarcely sufficient to warrant such an opinion. 

 It is also worthy of notice, that conglomerates, the absence of which is 



* It must be remembered that the collections of fossils obtained from the Karbaclda Valley 

 are as yet exceedingly small and imperfect. — T. Oldham. 



f Report on the Coal and Iron Districts of Bengal, page 9. 1856. 



% Geological Reports on the Kymore Mountains, Ramgurh Coal Fields, Sfc. Calcutta. 

 1852. Pages 27, 43, 44, and 53. 



