504 Scientific Proceedings, Royal Dublin Society. 
Central Provinces. 
25. Mopant, . : ml 
26. Tawa, : >  Satpura Region. 
27. Pench, - : ss) 
28. Bandar, . . : 
po ene aes b Clima ;  Godaveri Valley. 
31. Singareni, . Me] 
Sikkim. 
32. Sikkim. 
Assam. 
33. Makum, . : a) 
34. Jaipur, : : | 
35. Nazira, . < . Valley of the Bhramaputra. 
36. Jangi, : : 
37. Disai, | 
Tn the above list, localities, chiefly situated in the north-west 
provinces where Tertiary coal occurs, but not in sufficient quantity 
to constitute workable coal fields, have not been included. 
Of the thirty-seven separate fields only five are at present worked 
with regularity. These are Ranigunj, Karharbari, and Dalton- 
gunj in Bengal, and Mopani and Wardah in the central provinces. 
In the following abbreviated notes I endeavour to give the chief 
‘points of importance regarding each field, while the references to 
the publications of the Geological Survey will indicate the sources 
from whence fuller details may be obtained :— 
LOWER BENGAL. 
J. RAJMAHAL AREA,* 
The Rajmahal Hills form a series of low plateaus, which are 
situated at the point where the Ganges turns southwards to form 
the head of its delta. 
The formations in this area, which are connected with the coal- 
measures, are in descending order as follows:—1. Laterite. 2. 
Rajmahal Group, consisting chiefly of contemporaneous traps, 
with beds containing fossil plants 1,500 feet. 3. Dubraj- 
pur group (== Mahadevas), 450 feet. Barakar group (=coal-mea- 
sures). 5. Talchir. These cover a total area of about 4,000 square 
miles. The coal-measures are exposed over seventy square miles, 
but doubtless extend over a vastly greater area underneath the 
* Ball, Mem. Geol. Survey of India, Vol. XIII. Also Manual, pp. 165, 171. 
