18 HUGHES: DALTONGANJ COAL-FIELD. 
The only other out-crop in this field of what may really be termed 
coal occurs in the Rajhéra river, about 120 yards from its confluence 
with the Koel. It is best seen in the left bank, and at the place of 
exposure measures 3'. The coal it contains looks of excellent quality, - 
and I would strongly advise its being opened out. 
At first I thought this seam identical with the one at Rajhéra, but 
the difference in their respective thickness 1s great, and the sandstones 
with which they are associated are distinct 1n character. 
Its position in the series will be higher than that of the Rajhéra 
seam. There is a bed of carbonaceous shale in the Koel measuring و‎ 6^, 
whieh may be the extension of this 3' bed. It occurs in the right bank. 
The foregoing remarks end the special descriptions of the different 
seams of coal with which I met during the investigation of the Dal- 
tonganj field. There are some out-crops of carbonaceous shale that I 
have not referred to, as they are useless for any economical purpose; 
their position, however, is indicated on the map. 
The distribution of the Barákars beyond Rajhéra presents no 
feature of any interest. The principal rocks are sandstones, which are 
massively bedded, dip at small angles, and contain some lime in their 
composition. 
The trend of the boundary is north-westerly near Busna, corres- 
ponding ina measure to the contour of the Talchirs; it then turns 
southward, crossing the Jhurha nadi, about a mile from its junction 
with the Koel. 
Organic remains.—Nothing but vegetable remains occur; and these 
are neither distinctly preserved nor are they numerous either as to 
species or individuals. 
Igneous rocks.— There is only one case of intrusion of trap. In 
the Jinjoí river, just at the border of the field, a dyke appears in the 
Talehir series. 
( 848 ) 
