40 
BALL AND SIMPSON: COALFIELDS OF INDIA. 
60. The next in importance were at Tesaphuli, in the Chapar- 
bhita field, where about 16,500 tons were raised in the three years. 
Altogether it is probable that not more than 100,000 tons have 
been raised from these fields, and of that amount a large propor- 
tion was very poor stuff. A few quarries are still being worked for 
local purposes during the dry season, but the output for 1910 was only 
2,788 tons. 
Jairdi, Sahajori, Kundit Kuraiah. — These three coalfields are 
situated in the south of the Sonthal Parganas, in the neighbour- 
hood of the Adjai river. Their combined area is about 28| square 
miles, of which 11| square miles are occupied by Barakar rocks, 
the rest being Talchirs. The coal-seams are few in number and 
none attains a thickness of 3 feet. Samples from the Sahajori 
field, assayed by Dr. Waldie, contained from 28 to 37 per cent, of 
ash. 
After an examination of the fields, Mr. Hughes ^ arrived at 
the opinion that they would never be of much importance owing to 
the poor quality of the coal they contain and the limited area 
over which it occurs. 
In 1909 two mines were opened and worked for a short time. 
These were situated at Katmirki and Madancotta. 
Giridih (Karharbari)^. — This small but important coalfield is 
situated in the Giridih sub-division of the Hazaribagh district 
of Chota Nagpur, at a distance of about 200 miles from Calcutta 
by rail. It is of great importance, both on accouni/ of its position 
and the quality of its coal. The total area of the field is 11 
square miles, of which 7 square miles are occupied by coal-bearing 
rocks (Barakars). Faults are numerous and some of them have 
great throw. There is a large number of igneous dykes, and their 
contact effects have destroyed many thousands of tons of coal. 
The most destructive are composed of mica-peridotite, whilst the 
widest are of basalt. There are many seams of coal, of varying 
thickness and quality, but the bulk of the workable coal is con- 
1 Mem., G. 8. 1., VII. 247 (1870). 
2 Saiso, Ret:, G. S. I., Vol. XXVII, 8G (1894) ; Holland, T. H. and Ward, T. U., 
Tram., Min. Geol. Inst- of India, L, part 3, pp. 103-198 (1907). 
