9 HUGITES : DALTONGANJ COAL-FIELD. 
There are numerous outliers of the Talchirs, to prove that the series 
E was formerly deposited beyond the present limits 
of the actual field. I have not attempted to map 
them all, as their irregularity of outline would have occupied much time 
in tracing them out, which could be more advantageously devoted to 
rocks, the economie importance of which invests them with a superior 
interest at the present time. 
As the Talchirs present no new features of interest, it is not neces- 
sary to make references to special localities. Neither is it essential to 
enter into detail as to the distribution of the series, as the map attached 
to this memoir is a far better and much readier reference than a des- 
cription abounding in the names of villages and rivers. 
I estimate the thickness of the Talchirs to be on the average about 
500 feet. There is no section which I can point 
Thickness. ; ; ۱ ۱ 
to asserting that it gives the data fora satis- 
factory estimate. But those accustomed to bear in mind and compare 
the sections which they have studied in different parts of the field, can 
always form an approximate judgment of the total thickness of the 
series of rocks which have engaged their attention. 
For the paleontologist there is only a negative interest in the 
seeming utter absence of anything like fossil 
logy. 2 : 
TT remains in the Talchirs of the Daltonganj field. 
The most careful searches yield nothing, but a consciousness that one’s 
time has been unprofitably spent. 
Damp. 
This series is represented only by the lower group, the Barákar, 
which covers an area of about 30 square miles. 
Unlike the Talchirs, the Barakars do not 
exhibit the same constancy of lithological aspect. — 
Barakars. 
